国产欧美激情日韩成人三区|成A∨人片在线观看无码|91欧美精品午夜性色福利在线|亚洲一级黄色,男人的天堂久久久,久久综合操,国产超级乱淫视频播放免费

Main Products
steel for anchor-chain Products>> Main Products>> steel for anchor-chain
Products Grade: 30CrMnTi
Specifications: Φ6.5-24 mm
Applied Standard:  GB 3077—1999
Characteristics: 30CrMnTi is mainly used for the manufacture of motorcycle chain shaft,cementite smasll shaft and small gear wheel.
Applications: Common mechanical steel
Use of Products: The Mine High Strength Circular Chain Steel strictly controlled chemical content and the inclusions,low tramp elements and good surface quality. Through the rational control of the chemical content and the optimization the rollings, the product has excellent hardenability.