Qingdao PLAS Technology Machinery Co., Ltd is the professional manufacturer/ supplier/ producer of the plastic machinery with the range as followings: WPC /PVC door and window profile extrusion technology PC,Website:http://www.cnplasmachinery.com, PET, PP, PE PS, ABS, PMMA multi-layer sheet/plate co-extrusion technology. SJ-SJSZ series single/twin screw extruder.