... BS, JIS, UL, galvanized, painted rectangular, square certificate:CE, ISO9001 square steel tube, rectangular or square, according to standards ... DIN2440/DIN2444, JIS G3444, BS1387, DIN2394, DIN2395, or similar standards. According to buyer's request is available ... Wall thickness:0.8mm---20mm. PURPOSE: fence tube, structural tube, scaffolding tube, furniture tube and so onCERTIFICATE: ISO9001, UL, FM, ...