Size:1.square&rectangular 20*20-300*300mm  2.round DN15-DN150

WT:0.7-4.0mm

Length:6m,customized

Standard:GB/T3091-2008,  BS1387-85,  ISO65-70,  BS4568-70,  ASTM A53,  DIN2440

Material:Q195,  Q215,  Q235,  Q345

Processing technology:high-frequency straight seam welding,hot-dipped galvanizing 

Zinc coating:180g/m2-600g/m2

Application:used for firefighting pipe,delivering oil,gas,water,making steel structure 

for green house,bridge,aviation,shipbuilding,construction,etc.

Main market:Middle east,Africa,North and South America,East and West Europe,Southeast Asia,Australia

       HanDan DeQi Metal Machine Manufacturing Co.,Ltd.is comprehensive company of production,sales,as well as import and export.We mainly produce pre-galvanized steel pipe,black steel pipe,hot dipped galvanized steel pipe,round pipe,rectanglar pipe and pipe fittings.