At present, the industries involved in rotomolding products at home and abroad include transportation, traffic safety facilities, entertainment industry, river channel dredging, construction, water treatment, medicine and food, electronics, chemical industry, aquaculture, textile printing and dyeing and so on. The rotomolding molding is the most economical and effective method for producing large-scale hollow plastic products. To promote rotomolding molding in the country, it is necessary to absorb foreign advanced technology, develop more and better rotomolding materials, and improve the automation level of rotomolding equipment. , shorten mold design and manufacturing cycle. In order to adapt to the increasing variety of rotomolding products, the continuously increasing scientific content of rotomolding products, and the increasing demand for rotomolding products in various industries, the China Plastics Processing Industry Association has established a rotomolding professional committee. It aims to exchange production technology and experience of rotomolding process, digest and absorb foreign advanced technology and equipment, strengthen technical cooperation, promote the development of rotomolding molding technology, processing equipment and molds in China, and develop and develop rotomolding special materials and their products. Container type rotomoulded parts, these plastic parts are widely used in storage and supply tanks, storage tanks, various industrial chemical storage and transport containers, such as acid, alkali, salt, chemical fertilizers, pesticide storage tanks, chemicals Enterprise, industrial coating, rare earth tanks, reaction tanks, turnover tanks, dustbins, septic tanks, domestic water tanks, etc. Roll-molded parts for vehicles, mainly using polyethylene and polyvinyl chloride paste resins, for rotomolding various automotive parts such as air-conditioning elbows, vortex tubes, backrests, armrests, fuel tanks, fenders, door frames and gear shifts Covers, battery casings, fuel tanks for snowmobiles and motorbikes, aircraft fuel tanks, buffers and shock absorbers between yachts and their tanks, boats and ships and docks. The rotational molding process injects designers with endless imagination. Designers can choose the best materials for the production process, including materials approved by the General Directorate of Food and Drugs. Additives put into the production process can effectively resist the invasion of the climate, static electricity interference and other external factors. During the design process, inserting the mouth, threading, handles, undercutting devices, and perfect surface design are among the highlights. Designers can also design a multi-wall mold that can be either hollow or filled with foam. It is believed that with the continuous advancement of modern materials industry and machinery manufacturing and automation technology, the rotational molding process will have rapid development in China.