1). The standard of pipes and fittings: ISO2531, EN545, EN598 for pipes and ANSI/AWWA C153/C110 for fittings 2). Pipes class:K9,C40,C30,C25, etc3). Pipes and Fittings Size:DN80-DN26004). Pipes Length: Normally effective length 6m for bulk cargo shipment; effective length 5.7m for container loading5). External Coating: Zinc no less than 130g/m2 and bituminous paint at least 70um as per ISO81796). Internal Coating: cement mortar ( or high aluminium cement, sulfate resistant cement) lining as per ISO41797). Gasket: SBR/EPDM/NBR/neoprene as per ISO4633 according to customers' request8). Chemical Composition(%):C:3.5-4.0% Si:1.9-2.6% Mn:0.15-0.45% P:<0.06% S<0.02%9). Hardness: within 230HB; Yield: more than 300Mpa; Pull Strength: more than 420Mpa10). Inspection: 100% inspection

Dinggin Hardware(Dalian)Co.,ltd was founded in 1998 as Dalian Casting Hardware Company, then in May 2009, combined with Good PipesCo.,ltd, in Nov 2011, we change the name into Dinggin Hardware since the business has been broadened a lot. Our head office islocated in Dalian, with 2 own factories in Liaoning Province and 5 cooperate factories in Hebei.Our factories have the ISO9001certificate and qualified management system.

1.Can I inspect factory?Yes, you can come or visit our factory online2. How can we guarantee quality?we 100% inspection, also could supply third-party inspection if customer needed. 3. How long delivery time?It depends on if we have stock or not, normally delivery time is 7days if we have stock; if need produce, it will depends on qty.4. What is the payment term?We accept TT, L/C at sight, or Alibaba Trade Assurance.