Specifications:
1) The standard of pipe: ISO 2531 - 1998, EN545-2002 , K9
2) Effective length: 6M when using bulk shipment way, or about 5.5M or 5.7M when in 20' container shipment way
3) Inner cement line: Portland cement lining as per ISO4179
4) Zinc coating: at least 130gsm as per ISO 8179
5)Bitumen painting: at least 70um as per ISO 8179
6) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber tightness ring as per ISO4633
7) DN 80 - 1,200 mm
8) High strength, lighter than gray iron, good corrosion resistance, no furring,small flow resistance, easy fixing, long life time
9) Checked by automatic inspection equipment
10)Composition:
 a) C: 3.4 - 3.7%
 b) Si: 2.0 - 2.4%
 c) P: <0.08%
 d) S: <0.015
11)Pull strength: >420MPa
12)Yield: >10%
13)Hardness: <230HB
14)Process and testing:
 a)Blast furnace (Analysis of raw materials test )
 b)Mg treatment (Micro & chemical composition test)
 c)Pipe spinning (Temperature test)
 d)Heat treatment (Micro structure; Flattening test)
 e)Zinc coating (Thickness testing)
 f)Dimensional checks (Thickness & Dia. testing)
 g)Hydraulic test (Pressure test)
 h)Internal lining (Thickness testing)
 i)External coating (Thickness test)
Packing: in bulk or container