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zhejiang,China
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10CrMo9-10 11CrMo9-10 12CrMo9-10 Alloy Steel Tubes
Water Boiler Tubes ASTM A214 for Heat Exchanger and Condenser Tubes
ASTM A179 SA179 Seamless Steel Tubes with Low Carbon Steel for hear exchangerS
ASTM A213Seamless Steel Pipes with Ferritic and Austenitic Alloy Steel Bolier
BS 3059 Gr 360 Carbon Steel Heat Exchanger Tubes , Hot Finished Seamless Tube