... no matter what kind of equipment, most of them use pipe, mainly used for oil, Ningbo Yinzhou old Lin Liangyong machinery ... manufacturing:1, Single-head hydraulic bending machine, Double hydraulic pipe bender, pipe reducing machine, metal circular sawing machine, making teeth for ... spot welder, welding machines directly.3, 5 tons, 16 tons, 40 tons, 100 tons, 100 tons of hydraulic punching machines and ...