ASTM A179/A192 St37 St35.8 T5 T12 T22 Pipe/Tube
ASTM A179/A192 St37 St35.8 T5 T12 T22 Pipe/Tube. Description. Standard: JIS G 3461-1988 Carbon Steel Boiler and Heat Exchanger Tubes Steel grade: STB340, STB410, STB510 Out-diameter: 4-76mm Wall thickness: 0.5-13mm
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