Quanzhou Licheng Kelong Machinery Equipment Co., Ltd. [China]

1.size:3/4 ,5/8 2.material:stainless/carbon steel 3.surface:passivasion,QPQ,galvanized 4.ISO SGS Rohs

1)Martensite

1.high hardness.

2.high tempreture is available for temper the steel with high temper risistance.

3.good anti-rust ability in the air with good antioxidizing performance.

4.mechanical behavior under high temperature 

bolts and nuts for construction machinery parts cutting edge &end bit