江蘇振翔減速機(jī)有限公司專(zhuān)業(yè)生產(chǎn)齒輪減速機(jī),ZSY、ZSZ硬齒面中硬齒面圓柱齒輪減速機(jī)JB/T8853-2001 Jiangsu Zhenxiang reducer Co., Ltd. specializes in the production of gear reducer,ZSY, ZSZ hard tooth surface in hard tooth surface cylindrical gear reducer JB/T8853-2001