Hangzhou Zhedong Steel Tube products Co.,ltd.

Our company,Hangzhou Zhe Dong Steel Tube Co.,ltd. is a modern professional enterprise specialized in producing high-precision thick walled seamless steel pipes.with the first restriction mandrel rolling mill for ASSEL high-precion ￠80 enhanced tube in domestic. Our common specification as: The Outer diameter from 75mm to 133mm and Wall thickness from 5mm to 30mm. And the Standard we could supply as below: GB/T8162-1999、GB/T8163-1999、GB/T3087-1999、GB5310-1995、20G、ST45.8- Ⅲ、GB9948-88、GB6479-2000 We export large quantity to many countries because of our good quality, competetive price and excellent service. Welcome to send inquiry directly to my mail box: zdsteeltube at yahoo dot com dot cn.Wish have the chance to enter into good business relationship with you!Thank you very much!