Plastic hollow ball In addition to the blow molding process, you can also use the injection molding machine to produce two plastic hollow hemisphere, and then use the heat welding process to weld the two hemispheres together by heating the metal plate to the two hemispherical hollow ball heating, Softening after the rapid bonding technology, the technology of plastic raw materials are not selective, all the plastic are applicable to the process to produce plastic hollow ball, the current Dongguan City Jiayi Plastic Products Co., Ltd. has been developed, PA plastic Hollow ball, POM plastic hollow ball, PSU plastic hollow ball, the product in precision and finish and plastic solid ball is a standard, than the blown hollow ball quality has greatly improved.