China strength factory direct selling short column locking device stainless steel cylindrical coupling
Negotiable
Min.Order:1
Jingjiang Fuji Technology Co., Ltd.
1.Body:S45C steel 2.Locking screws:Grade 12.9 3.Coventional surface: griding (bluing ,nickel plating ) 4.The mechanical performance level of CSF-A21 type locking assembly coupling set screws is 12.9. | ||||||||