... /4"20mm±3.00.7mm - 552' - 2M25, 24, 23, 22, 21, 20, 191"25mm±3.00.9mm - 551' - 2M25, 24, 23 ... , 22, 21, 20, 19, 181-1/4"31mm±4.00.9mm - 401 ... ' - 2M23, 22, 21, 20, 19, 181-1/2"40mm±5.01.0mm - 451' - 2M23, 22, 21, 20, 19, 182"50mm±6 ... we can do as your drawingOur factory has more than 15 years experience , sales more than 8 countries , the quality strict ...