Changsha Heijinggang Indusrial Co., Ltd is a famouse privately operated enterprise specialized in researching and manufacturing rock drilling equipments pneumatic tools, with land area of 15000m*m, workshop space 3500m*m. Currently we have more than 200 employees. We designed ...

we are a Professional OEM Manufacturer and have metal processing factory in China. All of our products completed on aeronautical standards for almost all process engineers, machinists, surveyors administration been training by state owned aviation industry corporation. We can offer ...