NINGBO DONGXIN FASTENERS CO.,LTD.
Ningbo Dongxin High-Strength Nut Co., Ltd, established in 1992, we are manufacturer of fasteners that used-- Oil & Gas industry, Petro-Chemical Industry, Offshore and Marine industry.
Our main products are ASTM A194 -2H,2HM,7,7L,7Mseries nuts,and ASTM A193 –B7,B7MB16,A320 –L7,L7M serires stud bolts,tapping studs,thread bar and hex bolts.
We are approved by API-20E BSL-1/-2, and we have PED certificates.