ZhangjiagangHaujoyMachineryCo.Ltd.comes from previous Zhangjiagang Zhoujiaqiao Tooling & Hardware Factory established in1985. At that time, the motorcycle piston ringindependently developed and manufactured by our factory broke themonopoly ofJapanese enterprises in thisfeld.
Haojiu has a CNC wave spring and retaining ring production line with completely independent intellectual property rights, which can produce various wave springs and retaining rings with high quality and efficiency.
Starting from details and from a professional point of view, to complete self-optimization and adhere to quality is the unswerving commitment of Haojiu Machinery, to conquer people's hearts with quality and let the world know
It has the environmental certification certificate of GB/T24001-2016/ISO14001:2015 standard, the occupational health and safety management system certification certificate of GB/T45001-2020/ISO45001:2018 standard and many other strength certification certificates
With 40 years of manufacturing experience in the industry, more than 20 senior engineers have served more than 100 customers. With our sincerity, we can exchange customers' confidence
The company has a complete after-sales service system and quality assurance system, a professional after-sales service team, and established various communication channels