Qingdao ShenDun waterproof technology Co., Ltd is a large manufacturer of plastic and specializes in the business of plastic machine, plastic raw materials, plastic installation tools, plastic products&technical services. Our company is equipped with the most advanced entire computer controlled injection machines, assembly flow-lines and mold manufacturing equipments. Qingdao ShenDun waterproof technology Co.,Ltd owns a high quality group of professionals for designing, developing, manufacturing and managing