... - 401' - 2M23, 22, 21, 20, 19, 181-1/2"40mm±5.01.0mm - 451' - 2M23 ... , 22, 21, 20, 19, 182"50mm±6.01.2mm - 401' - 2M23, 22, 21, 20 ... , 19, 182-1/2"65mm ... ±7.01.0mm - 301' - 2M21, 20, 19, 183"75mm ... above tolerance comply with standard EN10223-2:1997;2.) Minimum Galvanization is only for ...