ZHENGMAO.ZHENGMAO, founded in 1974, is a globally leading specialized manufacturer of marine anchor chains and mooring chains. With an annual production capacity of 120,000 tons, the company operates 14 chain manufacturing lines, 6 vertical heat treatment furnaces, and multiple high-tonnage tensile testing devices including a 400-ton fatigue testing machine, ensuring comprehensive quality control from raw materials to finished products. Its marine anchor chains, mooring chains (R3 to R6 grades), and accessories such as shackles and swivels have obtained certification from 11 major global classification societies, including China's CCS, America's ABS, Norway's DNV, Britain's LR, and France's BV. With exceptional quality, its products are exported to over 30 countries and regions worldwide, including Japan, South Korea, Germany, and Norway, establishing the company as a key supplier in the international maritime and offshore engineering sectors.