91中文精品,污污的视频免费在线观看,91就要激情,精品黄色网,欧美精品看片,久久久久久a亚洲欧洲aⅴ,天天干天天色综合网

Main Products
steel for machine structure Products>> Main Products>> steel for machine structure
Products Grade: S20C、S35C、S45C、S48C、XGS35C、XGS45C、GS35C-A、GS35C-BT、GS45C、QS45C-C
Specifications: φ5.5～42mm
Applied Standard:  Q/XG 115
Characteristics: This kind of products is mostly used to produce hand tools, mechanical components and CD bar for manufacturing transmission, suspension, brake and steering devices of automobile, connecting rod of absorber in motorcycle and components of equipment and electric appliance.
Applications: Common partsaxostyle parts
Use of Products: This kind of products has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, slight decarburisation, good surface quality, tight tolerance etc.