... consumption•Main structure is made of high tensile strength H beam, with precision welded and good rigidity.•Shaft, roller and ... in making roll forming machine ,such as Roll forming machine,Forming Machine,Super span roll forming machine,Curving roof roll forming machine (MIC120/240),K span MIC120/240 roll forming machine,No-girder and Columniation Roll Forming Machine,240Model roll formingmachine ...