Longrun has advanced tecnical equipment.Exact number-control lather.Lie type band saw bed,clearner,engrave machine,Heat-treatment Furnace,and so on.Company produces stainless steel flange according to the standard of ANSI/ASME,DIN,JIS,BS,GB,SH.The main material we used is 304,304L,316,316L,316Ti,321,etc.We can also produce Non-standard flanges as per drawings and samples provided by customers.