... Tianjin Anxintongda Steel Pipe Co., Ltd. is Established in 2000 specializes in the business of galvanized square & rectangle steel pipes. ... are manufactured with advanced equipment and strict QC procedures in order to ensure high quality. Guaranteeing stable and timely ... 316L,etcSize range: 3~40 mm in thickness, 20~350 mm in width, 3~12 meters in length.Application: construction structure, machine ...