久爱伊人,亚洲天堂aaa,欧美三级电影网站,国内一级黄色毛片,aaa毛片在线观看,青青福利,在线中文天堂

Main Products
Products Grade: 30MnVS6
Specifications: φ15-25mm
Applied Standard:  agreement
Characteristics: ball studs
Applications: steering system parts
Use of Products: This grade has the feature of stable chemical composition and mechanical property, minor decarburization, good surface quality,homogeneous microscopic structure.cost-saving for quenched and temperde exemption, deformation from quenched and temperde avoidance.