JIANG YIN LONG RUN FLANGE CO., LTD.
AUSTENITIC STEEL MATERIALS CONTAIN
F304L/ 1.4307
F316L/ 1.4404
F321/ 1.4541
F316TI/ 1.4571
F317L
F347L

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Longrun has advanced technical equipment: Air forging hammer,CNC machine, Heat-treatment Furnace, and so on.

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