1)Major Products: Socket Welded Flange, Slip on Flange,
    WN Flange, Blind Flange, Threaded Flange, Ring Joint Flanges
2) Standard: ANSI, ASME, DIN, BS, EN, JIS, GOST
   ASME: ANSI B16.9, ANSI B16.28, MSS SP75
   DIN: DIN2605/2615JIS: JIS B2313
   EN: EN10253-1/2, EN10253-2
   GOST: GOST 17375-2001
3) Material: 304,304L,3213,16,316L,310S etc
4) Size: DN15-DN1000
5) Pressure class: 150-2500, 5k-30k, PN0.25- 32mpa