  2014.8  Longrun applied for flange products liability insurance.

  2013.7  TS Certificate Manufacturing license of special equipment

  2013.4  Add  2 sets ofCNC drill machines for small size flanges drilling(below 10”)

  2012.11  ASME issued by TUV Rheinland Approved material ASTM A182 F304, F304L, F316, F316L, F321, F316Ti, SA105

  2011.6  got certificate PED/97/23/EC and AD2000 issued by TUV Rheinland approved material DIN17440/EN10222-1,EN10222-5 1.4301 1.4306 1.4401  A105 equivalent material grade according to other standards (e.g. BS ,AFNOR, ASME)is proved

  2007.9  Got certificate ISO9001:2008

  2007.8  Established Jiang Yin Long Run Trading Co.,Ltd. Trading carbon steel flanges and fittings

  2007.8  Established Jiang Yin Long Run Flange Co.,Ltd. specialized in manufacturing Stainless Steel Flanges

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

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