大陆日韩欧美成人_麻豆国产精品一区二区三区_亚洲欧美 ,午夜直播视频网站,一级按摩毛片,裸体柔术18sex╳╳,皇上调教尤物美人h,日韩黄色αα片

CHINESE|ENGLISH
Current Location:Home > Products > Accessories Of Screw And Barrel > Hinge Pin

Products

Parameters:

Brief introduction:

Hinge Pin

Basic parameters:

Processing diameter: 16mm-400mm

Processing length: ≤1000mm

Material & processing: 42CrMo medium frequency +Chrome plating, 

42CrMo ion nitriding + Chrome plating, 38CrMoAlA gas nitriding, 

38CrMoAlA ion nitriding + Chrome plating

Finish      :Ra≤0.2

Performance advantage: super wear-resistant


Scope of application:

Composition and process:

展開