不淬硬钢和奥氏体不锈钢内螺纹圆柱销
Parallel Pins with Internal Thread, of Unhardened Steel and Austenitic Stainless Steel
淬硬钢和马氏体不锈钢内螺纹圆柱销
Parallel Pins with Internal Thread, of Hardened Steel and Martensitic Stainless Steel
内螺纹圆柱销
Parallel Pins with Internal Thread