thép ống đúc phi 73 x 5ly

+++++++++++ thép ống đúc phi 73 x 5ly ++++++++++ Thép ống phi 73 x 5.16 x 6000mm – 12000mm Thép ống DN65 x 7.01 x 6000mm – 12000mm Thép ống OD73 x 9.53 x 6000mm – 12000mm Ống thép 2 ½ INH x 14.02 x 6000mm – 12000mm Ống thép mạ kẽm phi 73 x SCH40 x 6000mm Thép ống phi 101.6 x 5.74 x 6000mm...