... ×300 / 3000×2100 mmDimension5000mm×1728mm×2870mmWeight3000 KG Structure Feature This machine is made up of four heads,fixed pole,active pole ... and down clamp can realize the pressing.Function Explanation The machine is used for PVC door and window welding processing.The ... at one step.It is very efficient. PVC window vertical 4 corner welding machine