Laiwu Steel Group Zibo Anchor Chain Co., Ltd. was established in 1993, is the only manufacturer in the world that can provide one-stop service from raw material production to anchor chain manufacturing. Product quality control starts from the source. Shandong Steel Group, the parent company, is a national super-large iron and steel joint enterprise with an annual output of 30 million tons of steel. It also controls more than 100 economic entities and listed companies such as securities, banks and design institutes.