... seamless pipe, flange,elbow,galvanized tube and other product).All the product have been approved by API and ISO systerm.All ... the product are correspond ASTM, DIN,JIS standard and produce the ... , 30K, 40K, PLFF, PLRF, BLFF, BLRF, SOHFF and SOHRF Main Export MarketsEastern EuropeNorth AmericaMid East/AfricaCentral/South AmericaAsiaWestern EuropeAustralasiaIf you ...