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  The delivery of ASTM A105 ASME B16.11 couplings

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  Welding skills of stainless steel bellows and flange pipe

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  DH36 steel plate for Marine Grade

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  Seamless steel pipes are being shipped to Nigeria

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  Corten A flange with DNV 3.2 test

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  Reducing flange is being shipped to Italy

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  Bangladesh 250 tons of seamless and ERW steel pipe order

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  S32750 use environment and application field

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  Welding characteristics of duplex stainless steel S32750

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  Let me show you about S32750 material

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  Project order for 32750 duplex stainless steel

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  Hebei Haihao Group has received for DNV certification

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  We exported a batch of A182 F316L pipe fittings and flanges to Singapore

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  DNV 3.2 test report and lab test data for CORTEN A (S355 JOWP) material

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  DNV 3.2 test report and lab test data

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  DNV 3.2 TEST S355 JOWP Flanges

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  DNV 3.2 TEST S355 JOWP PIPE

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  ASME B16.5 Standard-Pipe Flanges and Flanged Fittings( NPS 1/2 Through NPS 24 Metric/ Inch Standard) Pressure Testing

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  ASME B16.5 Standard-Pipe Flanges and Flanged Fittings( NPS 1/2 Through NPS 24 Metric/ Inch Standard) Tolerances

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  ASME B16.5 Standard-Pipe Flanges and Flanged Fittings(NPS 1/2 Through NPS 24 Metric/Inch Standard) Dimensions

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  Spectacle Blind Flange (Figure-8 Blind Flange)

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  What is the sweepolet?

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  PT inspection (penetration inspection) of pipe fittings

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  You don’t need middlemen to buy pipe products