Shandong Tanggang Metal Products Co Ltd Stainless Steel 27/10/2020· Shandong Tanggang Metal Products Co Ltd was founded in 2020 located in Liaocheng city Shandong Province factory covers an area of 60 000 square meters specializing in the production and processing of metal raw materials such as carbon steel galvanized stainless steel cold drawn steel products aluminum/zinc copper are exported to Asia the Middle East