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dn 250 q195 q235b square hollow section pipe price pre D, DC01, DC03, 1008, 1010 JIS G 3466SS330, SS440, SS490, SPHD, SPHE ProcessERW and Seamless Commodity 20x40 rectangular pipe hollow section Q235/Q195 square pipe Material Q195 Q235 GR.B GR. DN250 DN300 DN350 DN400 API 5L ASTM A500 erw welded steel pipe manufacturer Read More. you tube, you tube Suppliers and
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ss400 square steel Manufacturer - ss400 square steel Product name:galvanized square steel tube/pipes Key word:galvanized square steel tube/pipes Out diameter:10-500mm Thickness:1-30mm Length:6m,or cutting according to your request Material:ASTM A106B,ST52,S275JR,S275JO,Sss400,Q235,Q345B,304,316,309s,etc Stan