Rotomoulding is the technique for producing hollow plastic products. The first step is to put plastic powder into molders, then heat the molder to make the powder revolve around two vertical axes. The resin within the molder starts to pave the surface evenly due to the weight and heat followed by melting on the inner surfface of molder. The second step is to cool down the molders and remove from the molder to get the products. Compared with that the plastic forming always take such as extrusion, injection, and blowing, the rotomolding enjoys the advantage of small investment, excellent application for medium-and-super sized plastic products in complicated structures, and no stress, rtc. Space for the vast number of customers.