Supply Huzhou Rectangular Pipe prices, Rectangular Pipe Manufacturing, Jiaxing, Ningbo, square and rectangular tube quality large diameter thick-walled seamless square tube steel pipe production and supply Name Cangzhou Yan Tai size range (length × width) the specifications range (thickness) square tube 20 x 20mm -800 × 800mm 1.5-40mm rectangular tubes 20 x 30mm 400 x 800mm (500 * 800) 1.5-40mm Material Q195, Q215, Q235, Q275, Q345B, 20 #, 45 #, low alloy, stainless steel, seamless square and rectangular tube and implementation of standards: GB/T6728-2002, EN10210, EN10219, ASTM A500, JIS G, BS, DIN and other packaging standards: strapping standard packaging packaging tubules an order to meet customer requirements, bassoon two from the set. Processing, straightening, export oiled, painting and other. Our company has passed ISO9001: 2008 quality management system certification, the products have passed the European CE certification 10210-1:2006,10219-1:2006.