... 5%.4.Equipped with a fixed size trench roller R series, tube geometry after compression high accuracy and ovality at ≤ 0 ... heating pipe manufacturing industry.main technical parameters:1, Power source: Three-phase AC 380V, 50Hz2,Power input: 08: 6kW 10: 7.5kW 12 ... : 08: 1.6t 10: 2t 12: 2.4t LFS27-Q01 Series pipe shrinking machine for heating element