first quality of GI pipe. Steel Pipe, Iron Pipe, Hot dipped galvanized Steel pipe. BS standard steel pipe. Materials: Carbon steel pipe Q235Standard: BS1387-1985Size: from 1/2 inch to 6 inchLength: 5.80meter for 20ft container shipment and 6.00meter for 40ft container shipment. GI pipe are widely used on pipe connection. TommyHebei Wanda Malleable Iron Corp.,Ltd GI Pipe