Ningbo Ruiyi Metal Products Co., Ltd. is a professional China Countersunk head self drilling screw Suppliers and Stainless Steel Countersunk head self drilling screw Factory. The company has a total investment of 20 million, covering an area of more than 50 acres and a factory area of 20,000 square meters. It is one of the domestic high-quality fastener manufacturers. The company has passed ISO9001:2008 international quality system certification and is an export-oriented enterprise with self-operated export rights.
Norm: |
DIN7504M, DIN7504N ASME B18.6.4 |
Grade |
SS410,A2,A4 |
Surface |
Dacromet, Ruspert |