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Contact SupplierStandard: api, astm, bs, din, gb, jis, api 5ct, api 5l, astm a199, astm a312m-2001, bs 1139, bs en10217, din 1626, din en 10208-1-1998, gb 5130, gbt 3091-2001, jis c8305-1999, jis g3459 grade: 10#-45#, q195-q345, st35-st52, 10#, 20#, 45#, q195, q215, q235, q345, st35, st42, st52 thickness: 1.2 - 2.0 mm section shape: square outer diameter: 80mm place of origin: hebei, china (mainland) secondary or not: non-secondary application: structure pipe technique: cold rolled certification: sgs surface treatment: galvanized special pipe: emt pipe alloy or not: is alloy product name: galvanized square steel pipe surface: galvanized coated shape: square section usage: construction structure length: as customers' request name: galvanized square hollow section steel pipe end protector: reqeust material: q195q215q235q345 delivery: 10-20 day after payment zinc coating: 40-275gm2.