1.coil thickness:1.6-3.2mm;1.6-2.6mm 2. ... , length, punching cutting, and roll forming. JCZ-350 changeable purlin machine consists of hydraulic decoiler, flattening device, 2 sets of hydraulic ... of construction material machinery such as sandwich panel machine, steel forming machine, and guardrail forming machine etc. Our productds are ISO9000 and CE ...