de acero astm 4120 para construcciones pesadas:
ASTM a36 1050 4120 4130 4135 4137 4140 2mm pizza steel sheet customized carbon steel baking sheet plate. $500.00-$750.00 Tonelada. 1 Tonelada ... ASTM SAE a36 1008 1010 1015 1019 1025 1030 1040 1045 1050 1055 4120 hot rolled alloy carbon ms steel sheet mild plate. $500.00-$750.00 Tonelada. 1 Tonelada ...
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