O-RING
Characteristics of O-RING due to its low manufacturing cost and convenient use, so it has been widely used in a variety of dynamic, static sealing occasions.
Standard - most state of the O-RING are formulating a series of product standards, which the Chinese standard (GB3452.1 ), American Standard ( AS 568 ), Japanese standard ( JIS B 2401 ), international standard ( ISO 3601 / 1 ) general.