... forming machine,roof and wall panel machine,decking floor roll forming machine,floor decing forming mahcine, stud and track roll forming machine, highway guardrail roll forming machine,cable tray machine ... steel(5)Hardness for Heat Treatment: HRC55 – 60°C 3. HYDRAULIC PUNCH DEVICE: (1)Adopted with 4 ... steel(6) Hardness for Heat Treatment: HRC55 – 60°C(7)Diameter of shaft: 80mm(8)Frame panel thickness: ...