Are you looking for the best o-ring manufacturers in China? With numerous factories offering a wide range of o-ring sizes and materials, choosing the right one can be overwhelming. In this article, we’ll compare the top o-ring manufacturers in China, helping you make an informed decision for your needs. Let’s dive in and find the perfect fit for you.
Ring Size Conversion Chart – International – Après Jewelry
Product Details: The International Ring Size Conversion Chart on Apres Jewelry’s website provides a comprehensive guide to convert ring sizes between different countries. It includes conversions for USA/Canada/Mexico, UK/Ireland/Australia/New Zealand/South Africa, Germany/France, and other regions. The chart lists the corresponding ring sizes based on inside diameter in millimeters and inches. For example, a US size 6 corresponds to a UK size L, a German size 16, and an inside diameter of 16.6 mm or 0.65 inches.
Pros:
– Comprehensive conversion chart covering multiple countries and regions.
– Includes measurements in both millimeters and inches for accuracy.
– Helpful for customers to determine their correct ring size regardless of their l…
Cons:
– Does not account for variations in fit due to time of day or personal comfort pr…
– No guarantees are provided for the accuracy of the conversions, and users are ad…
International Ring Size Conversion Chart: US, Australia, …
Product Details: The website likely provides tools and methods for measuring ring sizes. This may include options such as a ring sizer, a printable DIY ring size measuring kit, and guidelines on how to measure ring size using a string or an existing ring. The ring sizes are typically indicated in US sizes, ranging from size 3 to size 15, with half and quarter sizes available. The measurements are linked to the diameter or circumference of the inside of the ring’s band.
Pros:
– Accurate measurement using a ring sizer or printable kit
– Convenient methods for measuring at home without visiting a jewelry store
– Detailed guidelines for ensuring the correct fit
Cons:
– Potential for inaccurate measurements if the DIY kit is not printed correctly
– Need for careful handling and measurement to avoid errors
– Limited flexibility in sizing if the ring is not resizable
International Ring Size Conversion
Product Details: Larson Jewelers offers a wide range of wedding bands and rings, including alternative metal options such as Tungsten, titanium, and black ceramic. They provide various styles, including comfort fit and standard fit rings, and offer customization options like personalized engravings and fingerprint inlays.
Pros:
– Wide variety of ring styles and materials
– Quick shipping and efficient exchange process
– High-quality products with good craftsmanship
– Patient and helpful customer service
– Customization options available
Cons:
– Potential issues with sizing when ordering online
– Some customers have reported issues with rings being lost or stolen during shipp…
International Ring Size Conversion Chart for Comfort Fit
Product Details: The International Ring Size Conversion Chart provided by Hanover Jewelers is a tool designed to help customers convert their local ring size to the corresponding US ring size. The chart includes ring size systems from various countries such as the US, Canada, Mexico, UK, Australia, New Zealand, South Africa, Ireland, France, Russia, Denmark, Sweden, Norway, Finland, Germany, Argentina, Brazil, Japan, China, Korea, Hong Kong, Taiwan, Singapore, and Switzerland. It provides conversions for comfort fit rings and includes measurements in both millimeters and inches. The chart is intended to give a general idea of ring size, but it is recommended to
get measured at a local jeweler for the most accurate fit.
Pros:
– Comprehensive chart covering multiple international ring size systems
– Includes measurements in both millimeters and inches
– Helpful for customers purchasing rings online from different countries
– Provides guidance for both standard and comfort fit rings
Cons:
– No guarantees are provided for the accuracy of the conversions
– Ring size can vary due to factors like time of day, finger temperature, and jewe…
– Does not account for subjective opinions of fit and variations in ring width
– Recommendation to visit a local jeweler for precise measurement due to potential…
International Ring Size Conversation
Product Details: My Love Wedding Ring offers jewelry in US ring sizes. For customers outside the US or Canada, they provide a comprehensive international ring size chart to convert to the corresponding US ring size. The website allows users to determine their ring size using this chart. Additionally, a free plastic ring sizer can be requested, which is mailed within 5 to 7 business days. The website also includes a printable ring size guide and a video tutorial on measuring ring size. Resizing services are available within 60 days of shipping, with some conditions and potential charges for certain ring designs.
Pros:
– Comprehensive international ring size chart for conversion
– Free plastic ring sizer available upon request
– Printable ring size guide and video tutorial for measurement
– Resizing service available within 60 days of shipping
– Lifetime resizing service with minimal or no charge for some rings
Cons:
– Some ring designs may not be resizable due to their design and setting
– Resizing charges may apply for certain metal types and size changes
– No changes or cancellations allowed after the order is placed
– No returns, refunds, or exchanges except for defective items or ring size change…
International Ring Size Conversion Chart Table
Product Details: The ring size conversion chart provided by Bling Jewelry is a comprehensive guide to help users determine their ring size across different international sizing systems. The chart includes measurements in millimeters and inches, and correlates ring sizes from the United States, UK, Germany, Spain, France, Italy, and Japan. It lists the inside diameter of the ring in millimeters and the corresponding ring sizes for each country. This chart is useful for both consumers and retailers to ensure accurate sizing when purchasing or selling rings internationally.
Pros:
– Comprehensive coverage of various international ring sizing systems.
– Includes measurements in both millimeters and inches for accuracy.
– Helpful for consumers and retailers to ensure the right fit.
– Facilitates international purchases by providing size conversions.
Cons:
– Does not provide instructions on how to measure ring size.
– Does not include adjustable ring options or other types of jewelry sizing.
– Users need to refer to additional resources for measuring their ring size.
Ring size conversion chart – Opal Direct
ring-size-conversion-chart.pdf
Product Details: The ring size conversion chart provides a guide to determine ring sizes in different countries. It includes ring diameters in millimeters and corresponding ring sizes for the USA/Canada, United Kingdom, France, Germany, Japan, and Switzerland.
Pros:
– Helps in accurately determining ring sizes across various countries.
– Provides a comprehensive chart for easy reference.
– Allows users to measure their ring size at home using a strip of paper or string…
– Many jewelers offer free one-time resizing services for rings.
Cons:
– Measuring ring size without professional help can be inaccurate.
– Finger sizes can fluctuate based on the time of day or weather conditions.
– Resizing certain rings, especially those with diamonds or specific settings, can…
Ring Size Guide
Product Details: The ring size guide is designed to help customers determine their ideal ring size. It provides multiple methods for measurement, including using a strip of paper or string, measuring an existing ring, and utilizing a printable ring sizer. The guide includes a size chart that correlates circumference measurements in millimeters to various ring sizes in different regions such as the US, UK, and other countries.
Pros:
– Multiple measurement methods to ensure accuracy
– Includes a printable ring sizer for precise measurements
– Provides size charts for different regions
– Tips for measuring at the right time and on the correct finger
Cons:
– Requires careful measurement to avoid errors
– Finger size can vary with temperature, which may affect accuracy
– Some methods may not be as precise as getting sized by a professional jeweler
The original ring size conversion site
Product Details: The website https://www.ringsizes.biz/ provides guidance on measuring ring size. It recommends using a set of gauge rings, which can be in steel or plastic, to determine the accurate ring size. Measuring at different times of the day is advised to account for finger swelling. Alternatively, an existing well-fitting ring can be measured using calipers or a tapered ring sizing stick (mandrel) by a jeweller. The site also discusses less accurate methods such as using a narrow band of stiff paper or string wrapped around the finger.
Pros:
– Accurate measurement using gauge rings or calipers
– Consideration for finger swelling by measuring at different times of the day
– Multiple methods provided for determining ring size
Cons:
– Less accurate methods like using paper or string can lead to incorrect sizing
– Measurements using a mandrel can vary by about half a size depending on the jewe…
– Printing a paper ring size chart from the internet can be inaccurate due to prin…
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| Ring Size Conversion Chart – International – Après Jewelry | The International Ring Size Conversion Chart on Apres Jewelry’s website provides a comprehensive guide to convert ring sizes between different countri… | – Comprehensive conversion chart covering multiple countries and regions. – Includes measurements in both millimeters and inches for accuracy. – Helpf… | – Does not account for variations in fit due to time of day or personal comfort pr… – No guarantees are provided for the accuracy of the conversions… | www.apresjewelry.com |
| International Ring Size Conversion Chart: US, Australia, … | The website likely provides tools and methods for measuring ring sizes. This may include options such as a ring sizer, a printable DIY ring size measu… | – Accurate measurement using a ring sizer or printable kit – Convenient methods for measuring at home without visiting a jewelry store – Detailed guid… | – Potential for inaccurate measurements if the DIY kit is not printed correctly – Need for careful handling and measurement to avoid errors – Limited… | www.betterthandiamond.com |
| International Ring Size Conversion | Larson Jewelers offers a wide range of wedding bands and rings, including alternative metal options such as Tungsten, titanium, and black ceramic. The… | – Wide variety of ring styles and materials – Quick shipping and efficient exchange process – High-quality products with good craftsmanship – Patient… | – Potential issues with sizing when ordering online – Some customers have reported issues with rings being lost or stolen during shipp… | www.larsonjewelers.com |
| International Ring Size Conversion Chart for Comfort Fit | The International Ring Size Conversion Chart provided by Hanover Jewelers is a tool designed to help customers convert their local ring size to the co… | – Comprehensive chart covering multiple international ring size systems – Includes measurements in both millimeters and inches – Helpful for customers… | – No guarantees are provided for the accuracy of the conversions – Ring size can vary due to factors like time of day, finger temperature, and jewe…… | hanoverjewelers.com |
| International Ring Size Conversation | My Love Wedding Ring offers jewelry in US ring sizes. For customers outside the US or Canada, they provide a comprehensive international ring size cha… | – Comprehensive international ring size chart for conversion – Free plastic ring sizer available upon request – Printable ring size guide and video tu… | – Some ring designs may not be resizable due to their design and setting – Resizing charges may apply for certain metal types and size changes – No ch… | www.myloveweddingring.com |
| International Ring Size Conversion Chart Table | The ring size conversion chart provided by Bling Jewelry is a comprehensive guide to help users determine their ring size across different internation… | – Comprehensive coverage of various international ring sizing systems. – Includes measurements in both millimeters and inches for accuracy. – Helpful… | – Does not provide instructions on how to measure ring size. – Does not include adjustable ring options or other types of jewelry sizing. – Users need… | www.blingjewelry.com |
| Ring size conversion chart – Opal Direct | opal-direct.com | |||
| ring-size-conversion-chart.pdf | The ring size conversion chart provides a guide to determine ring sizes in different countries. It includes ring diameters in millimeters and correspo… | – Helps in accurately determining ring sizes across various countries. – Provides a comprehensive chart for easy reference. – Allows users to measure… | – Measuring ring size without professional help can be inaccurate. – Finger sizes can fluctuate based on the time of day or weather conditions. – Resi… | www.lumeradiamonds.com |
| Ring Size Guide | The ring size guide is designed to help customers determine their ideal ring size. It provides multiple methods for measurement, including using a str… | – Multiple measurement methods to ensure accuracy – Includes a printable ring sizer for precise measurements – Provides size charts for different regi… | – Requires careful measurement to avoid errors – Finger size can vary with temperature, which may affect accuracy – Some methods may not be as precise… | orochinajewelry.com |
| The original ring size conversion site | The website https://www.ringsizes.biz/ provides guidance on measuring ring size. It recommends using a set of gauge rings, which can be in steel or pl… | – Accurate measurement using gauge rings or calipers – Consideration for finger swelling by measuring at different times of the day – Multiple methods… | – Less accurate methods like using paper or string can lead to incorrect sizing – Measurements using a mandrel can vary by about half a size depending… | www.ringsizes.biz |
Frequently Asked Questions (FAQs)
Frequently Asked Questions About O-Ring Sizes in Chinese Factories
How do I calculate the outer diameter of an O-ring?
To calculate the outer diameter of an O-ring, you simply need to know the inside diameter (ID) and the cross-section (CS) or width. The formula is: Outer Diameter (OD) = Inside Diameter (ID) + 2 * Cross Section (CS). For example, if the ID is 20 mm and the CS is 2 mm, the OD would be 20 mm + 2 * 2 mm = 24 mm.
What are the standard sizes for O-rings in China and internationally?
O-rings come in various standard sizes based on different country standards. In China, the standard is GB 3452.1, while internationally, you have AS568 for the USA, BS1516 for the UK, DIN 3771 for Germany, JIS B 2401 for Japan, and ISO 3601 for international use. These standards specify the ID, CS, and OD for each type of O-ring.
Can I customize the size of my O-rings?
Yes, you can customize the size of your O-rings. Many Chinese manufacturers offer OEM and ODM services, allowing you to specify your own dimensions. Whether you need a specific ID, OD, or CS, manufacturers can produce custom O-rings according to your requirements, even if they don’t fit standard sizes.
What is the minimum and maximum inside diameter for O-rings available in Chinese factories?
The inside diameter (ID) of O-rings can vary widely. Typically, IDs can range from as small as 0.3 mm to as large as 1500 mm. For IDs exceeding 1500 mm, you may need to communicate directly with the manufacturer to ensure they can meet your specific needs.
How do I choose the right hardness for my O-ring application?
The hardness of an O-ring, measured in Shore A, is crucial for its performance. Generally, O-rings range from Shore A 40 to 90. For most applications, a hardness of 60-70 is suitable, but if you’re dealing with high sealing pressures (30-60 MPa), you may need an O-ring with a hardness of 85-90. Lower hardness makes installation easier but may lead to issues like peeling or extrusion, while higher hardness can make installation more difficult.