shanxi solid industrial

taiyuan, China

One leading manufacturers of c25, c30, c40 k9 ductile iron pipe in chinaspecifications: 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 time9) checked by automatic inspection equipment10) composition: a) c: 3.4 - 3.7% b) si: 2.0 - 2.4% c) p: 10% 13) hardness: .