ZhengMao Group Co., Ltd. is the largest modern electrically welded chain maker in China.The factory was built in 1974 and it takes up a total area of 250, 000 square meters, in which factory houses cover 87, 000 square meters.The factory adopts advanced techniques and equipment for mooring chain and marine chain’s manufacturing. According to the international standard ISO1704, national standard GB549-96 and the specifications of world famous classification societies, i.e. CCS, LR, GL, ABS, NK, DNV, BV, RS, RINA and KR. and the following products can be supplied: Grade 2 and Grade 3 stud chain cable and studless chain cable with a range of diameter 16mm-152mm, Grade R3, R3s and R4 stud chain and studless mooring chain with a range of diameter 25mm-152mm and accessories of all the chains mentioned above. Its annual output is nearly 80, 000 tons.And 70% of chain cables are exported to south-east Asian countries or areas such as Japan, Korea, Hong Kong, USA and Canada, and west Europe such as Germany and Italy. The main product Grade 3 chain with brand name “SAN SHAN” was awarded national gold medal for its good quality. It wins customer’s reliance by providing best products and service.