Ningbo Zhenhai Dingli Machinery Manufacture Co., Ltd,as a professional fastener manufacturer in China, our main product includes thread stud, hex bolt, hex nut, and washer, which are extensive used in the Oil&Gas industry and Steelwork Construction. The material grade covers A193 B7/B7M/B16/B8/B8M, A320 L7/L7M, A325/A490 type-1, A449 type-1, A354 BC/BD, F1554 Grade.105, A1942H/2HM/8/8M/4/7, A563 A/B/C/D/DH, SAE J429 grade 2/5/8, F436 washer, F844 and so on.
We have advantage both on quality and price of these products, and have exported for many years.Hope that we can establish mutually beneficial and long-term business relationship in the future.