Patent Certificate
An arc-shaped channel steel forming and heating device for reinforcing rings of large-diameter containers, ZL202121438516.6
A reducer or head cutting gun positioning device, ZL202120292603.9
An eccentric pipe or head cutout manual rotary positioning device, ZL202120292588.8
A curved pipe inner-diameter steel ball guiding device with a highly accurate circular template, ZL20212 0292625.5
A medium-frequency push-bending production line, ZL 2021 2 0271058.5
A bending elbow cutting beveling device, ZL 2021 2 0276289.5
A submerged elbow cutting device, ZL 2021 2 0301817.8
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