日本不卡高清视频v中文字幕观看互动交流_手机在线看片欧美日韩_日韩激情一级无码毛片_国产真实尾随入室迷晕丝袜美女_久久天天躁狠狠躁夜夜免费观看

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.