pre-galvanized pipe

pre-galvanized pipe The pre-galvanized pipe are characterized by uniformity zinc coat,good surface finish, smooth surface both inside and outside the conduit wall, free from black spats and bubbles,strong corrosion resistance. It combines damage resistant strength with ductility to assure easy bending,cutting and joining . It also provides smooth continuous raceways for fast wire-pulling.No need to worry about damage to the conduit system when pulling through multipe90' bends. Greatly reduces electromagnetic fields, effectively shielding computers and sensitive electronic equipment from the electromagnetic interference caused by power distribution systems. All of the dimension: British standard BS4568-1970Diamension(mm)outside Diameter(mm)wall thickness(mm)length of thread(mm)weight(kg/M)MinimumMaximumminimummaximumminimummaximum1615.7161.4+(-)0.1011.513.50.4520.5312019.7201.6+(-)0.1513150.06430.7832524.6251.6+(-)0.1516180.8110.9953231.6321.6+(-)0.1518201.0691.3014039.5401.6+(-)0.1519221.361.525049.5501.6+(-)0.1519221.711.916059.560.32.0+(-)0.152.42.8675.57575.52.0+(-)0.153.253.6388.58888.52.0+(-)0.153.834.29114113.51142.0+(-)0.154.985.52