hieyan has been well managed for 20 years ,with R&D ablity to develop new products,among which ,the full automatic hydraulic elbow forming machine,hydraulic automatic pipe bendign machine,full automatic muliti cylinder hydraulic pipe expanding machine obtianed antional patant . right now ,heiyan hsa 5 senior engineers ,12 technicians ,80 loogisties and workers ,8 international traders .heiyan keeps improvement year by year . market covers mainland china ,america ,russia,turkey,ukraine,belarrus india,iran etc earn good reputation.
|