Qingdao Yifeng Plastic Machinery Co.,Ltd.is specialized in the design and produce rotary composite packaging film unit with twin-layer,Co-extruded plastic blowing machine group with single layer and multi-layer features in advanced design, fine manufacture, full specs which are able to meet various needs for product packaging in different sorts, diversified specs and high quality. Principal products: HDPE vacuum corrugated pipe unit ¡¢HDPE carbon fiber spiral coil unit¡¢PVC plastic hard tube extruding production line¡¢PE large-caliber insulated pipe production line ¡¢Plastic extruding corrugated pipe unit with single-wall¡¢PE and PP plastic thick board (slice) extruding production line¡¢Plastic grid plate extruding production line¡¢PE/PP-R/PEX fuel gas/flow pipe production line¡¢PVC/PE/PP plastic pelletizing unit¡¢PE/PP steel cladding intensified pressure tube production line¡¢PVC/PE double-wall corrugated pipe production line. http://www.yifengjixie.com/en