... pipe mould:steel tube, plum tube, flat tube, oval tube, fan-shaped tube, polygonal tube, single and double groove pipe and so on TypeSpecification (mm ... Pipe mould: steel tube, plum tube, flat tube, oval tube, fan-shaped tube, polygonal tube, single and double groove pipe, tube frame, special-shaped mould, etc ... of roundness in les than 0.05mm, square tube on the angle does not exceed ±0.05mm. High ...