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By certification 
Material: Carbon Steel, stainless steel, alloy steel
Technics: WELDED
Type: PIPE FITTINGS
Place of Origin: China (Mainland)
Model Number: 1/2"-72"
Brand Name: ESTAN
Connection: Welding
Shape: Equal
Head Code: circle
Color: black yellow,red,white or customer's requirements
Application: Petroleum,chemical,power,gas
Standard: ANSI, ASTM,DIN, JIS, BS, ISO, GB,GOST
Wall thickness: sch10s-sch160
Surface treatment: anti-rust oil, black painting
Product: elbow, reducer, cap, cross, tee
Our main market: Mid East,Southeast,Asia,India,Europe
Certificate: ISO, ABS, API, CE, SGS
Check from website:
http://www.steelfittings-flange.com/e_products/?big_id=1
Technics: WELDED
Type: PIPE FITTINGS
Place of Origin: China (Mainland)
Model Number: 1/2"-72"
Brand Name: ESTAN
Connection: Welding
Shape: Equal
Head Code: circle
Color: black yellow,red,white or customer's requirements
Application: Petroleum,chemical,power,gas
Standard: ANSI, ASTM,DIN, JIS, BS, ISO, GB,GOST
Wall thickness: sch10s-sch160
Surface treatment: anti-rust oil, black painting
Product: elbow, reducer, cap, cross, tee
Our main market: Mid East,Southeast,Asia,India,Europe
Certificate: ISO, ABS, API, CE, SGS
Check from website:
http://www.steelfittings-flange.com/e_products/?big_id=1
