Product Name: 5/32 Inch (3.969mm) Ceramic Ball Model NO.: 3.969mm Material: Ceramic Type: Bearing Ball Universal: Yes Standard Parts: Yes Certification: CE, ISO Customized: Customized Grade: G5-G100 Trademark: Fuqin Transport Package: Carton Specification: 0.4mm - 45mm Origin: China HS Code: 691490000 Product Description It has many advantages in applications where metals or alloys can not be used.Broad operating temperature(-400°F to +500°F)chemical inertness to most corrosive liquids or gasesextremely low coefficient of friction.PTFE balls are highly functional in self lubricating conditions such as ball bearings.In the fluid handling industry PTFE balls are used in ball valves that have contact with extremely corrosive liquids.The PTFE ball has reduced maintainance costs and man hours in the field by eliminating the replacement of valve components subjected to corrosive environments.2.Specification1) Meterial:PTFE2)Dia:3~100mmif your specifications and sizes are not listed in here. Please feel free to contact us through email or telephone as some certain specifications and sizes could be customized according to your request.Surface:A. flat and tidyB. no defects of crevices layers and separationC.The best precision is 0.01mm.FAQ1. How is the quality of your products?Our products are manufactured strictly according to national and international standard, and we take a test on every machine before delivery.2. What guarantee do you provide?If the quality is not consistent with the description as we said or promised before you place order, we promise you 100% refund.3. what's your delivery time?Within 30days in according to the size and quantity4. How about price?We have our own factory and can give you the lowest price, besides, we have a policy that " for saving time and absolutely honest business attitude, we quote as low as possible, discount can be given according to quantity".D.In the fluid handling industry, PTFE balls are used in ball valves that have contact with extremly corrosive liquids.