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Four head welding machineThree head welding machineTwo head welding machineEquipment Features:1. Four head welding machine can work separately or linkage.2. PVC window welding machine used for welding colorful seamless welding(0.22mm welding seam).3. Profile clamp with cutters,Website:http://www.truepromachine.com,welding seam adjustable within 0.2~2mm.It can respectively meet the common profile and colored profile processing requirement.4. Locating plate can slide along square guide,increasi