1,Suitable for welding common PVC profile, color coated PVC profile and laminated PVC profile（single side seamless welding optional）. 2,Adopt programmable logic controller (PLC) ensures the machine running more stable and reliable. 3,Double pressing function ensures higher welding strength. 4,The pressure of front and back clamper is adjusted separately, so as to improve the planeness of the welding corner. 5,The heads are operated individually, together. 6,Second head can move horizontally, so that realize various kinds of welding combination. 7,The Second head can be used for welding variable angle with the special mold and the angle range from 30°~180°.(optional) 8, Ultra big welding scale customization available.