1,manufacturer 2,wide size range 3,competitive price and good quality 4,support third party inspection Name: hot dip galvanized square/rectangular pipe usage steel structure/constructionStandard: GB/T 6728; BS 1139, BS EN10219-2006, BS EN 10296; ASTM A500; JIS G3444-2006, JIS G3445-2006Material: 10#, 20#, 45#; Q195, Q215, Q235,Q345; SS400SIZEPrice term: EXW, FOB, CNF, CFR, CIFPayment term: 30%TT ...