... Type of ends: BTC,LTC,STC;NUE,EUE8)Surface Treatment: Oil-dip, Shot Blasting, Varnish 9)Coupling,Pup-joint and thread ... : seamless or ERW11)Application: Conveying gas,water,and oil in both the oil and natural industries12)Test equipments: X-ray detector,ultrasonic ... )Main markets: USA,UK,Italy,Germany,Hongkong,India,Iran,Singapore,Malaysia,Thailand,South Korea,Japan,Egypt,Yemen,Saudi Arabia,Kuwait,Czech ...