Tianjin Tongda Metal Material Sales Co., Ltd.

our supply manufacturers have multiple sets of six roller reversible 450mm precision rolling machine, 90mm four roller mill unit two sets, five sets of two roller mill, 5 sets of electric heating furnace. The specifications of steel cable production thickness 0.12mm--0.5mm, thickness of 0.23mm--0.28mm prestressed corrugated pipe band, ( 0.2-2.5 ) * ( 5-700 ) mm 65Mn, 50Mn, 65# cold rolled spring s