Shijiazhuang Shengxiang Rongwei Technology Co., Ltd. the introduction of the United States of America's advanced vacuum vacuum casting aluminum alloy technology, silicone mold shells lost wax vacuum suction casting to keep pressure to make up for the shrinkage of the process has been perfected to solve the traditional casting process encountered in the strength of the poor, low-precision problems, the production of high-aluminum alloy bushings have a strong, durable, not easy to deform, high-precision characteristics of Shijiazhuang production of high-aluminum alloy bushes is the best! Shijiazhuang is the best manufacturer of high-aluminum alloy bushing.