Welcome To Qingdao Sanhuan Colorchem Co., Ltd.



We insist on the principal of Integrity, Quality, Innovation, Specialty, Mutual Benefits in the business and by joint efforts, we have promoted businesses and friendship on both sides. We will keep on working this way and make the world more beautiful.

August 13,2019

The Main Process of WPC Products

As far as the prior art is concerned, the molding process of wood plastic composite products includes several forms: extrusion molding, calender molding, injection molding, press molding, and so on. The process flow of wood plastic composite materials is basically as follows:

Broken and pulverized the waste plastics, sawdust, straw, etc. The processing of raw materials Mixing treatment of wood powder and plastic Granulation Extrusion Cooling setting Ttraction Fixed length cutting Finished product.

Due to the different processing equipment, the specific process will change accordingly.


HANJOIN specializes in the resarch & developments and maintenance of WPC decks.And we are committed to creating a cleaner, greener and healthier world with integrity and high quality service.


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