Applicable Tolerances : Outside diameter : +0.2 mm, Wall thickness : +- 0.15 mm, Lenght : 3ml.(without coupling), Thread per itch : 16 (3/4 to 1 1/4)and 14(1 1/2 to 2 1/3)
Steel conduits according to BS 4568 and BS 31 are also presentable in seamless form.