主要由于冶金、矿山、码头等对起重机工作级别要求高的环境、工作环境温度-40 ° ~+45°。
QY系列起重机专用硬齿面减速机、是在QJ系列起重机专用减速机基础上研制开发的，该产品箱体采用钢板焊接，箱体退火去应力处理、镗铣加工中心加工，齿轮采用******低碳合金钢，齿面渗碳淬火处理，恒温车间磨削加工，产品质量稳定可靠。
Honors and achievements gradually settle in the years, we pay more attention to a better tomorrow, and we will spare no effort to face the future. In the era of great changes in the increasingly fierce competition in the industry, we will abide by the development concept of "employees share the same destiny, enterprises and users develop together, and enterprises and society have the same responsibilities", with the principle of "based on the enterprise, serving customers, and dedication. The management tenet of "Society, Achievement of the Future" will go hand in hand with new and old friends, new and old customers, support each other, and create a brilliant tomorrow!
