Another important classification of drilling bits are engineering bits, also known as rotary digging bits. In recent ten years, with the investment of real estate and national infrastructure projects, rotary digging buttons have been fast developed in the
Weld neck flange and long weldneck flange provide reinforcement in application requiring high pressure and during low and high pessure extremes. It also helps in low cycle fatigue caused by line expansion of other variable forces.
Our products not only as the best seller and high-reputation products in domestic market, but were also exported to the US, Germany, Russia, Italy, South-Korea, India, Thailand, Vietnam and many other countries with OEM and ODM service.
HSR machine adopts air support shaft sleeve system of printing cylinder is very easy and convenient. Whether stick sleeve or carving sleeve is controlled by servo (no gears), which improve the printing quality and reduce the maintenance.