Jiaozhou Hongfeng plastic mold factory was established in 1999, focused on design and production of various types of plastic pipe extrusion die, has 12 years experience in design and production, and in 2002 obtained the national patent (Patent No.: ZL012614408). Hongfeng PE plastic mold design and production of the main pipe mold, PVC plastic pipe mold, PPR plastic pipe molds, PP plastic pipe mold, pipe mold plastic gas.

Hongfeng mold design and production of PVC hollow inner screw and foam inner helix, solid wall inner helix pipe mold, product specifications φ50-φ200. Forward out of this technology, power vertical into the mandrel rotation, variable speed, out of stable performance, compact drive set, sealing, high strength products, materials Province, noise, access to national utility model in 2002 patent (patent No.: ZL012614408), and was invited to attend the 97th session of the European scientific and technological development.

Hongfeng mold development and design of the foam core pipe extrusion head 60 °, product specifications Ф50 - Ф200, the technology for three-hole feeder, direct supply to 180 ° core layer material type, foam core products, uniform, dense , inside and outside the cortex prevails products, product distribution inside and outside the cortex, slightly wider range of processing, so that products of high strength material to be used province, this technology has been applied for patent.