Our stainless shs for industrial and structure usage Detailed Product Description Our stainless SHS features ... , 304L, 316, 316L, 321, 321H, 310S, 347H.4) Standards: ASTM A312, ASTM A213, ASTM A269, ASTM A511 and GB/T14975-2002, GB/T14976-2002, GB13296 ... the fields of chemical treatment, equipment, aviation, traffic, building etc. Industrial and Construction Stainless SHS Tube and Pipe