oil and gas steel pipe Steel Grade: J55 K55 N80 L80 P110 specification: from 3 1/ 2' ' to 20' ' certificate: API5CT BTC LTC STC EU " item : oil and gas steel pipe " Steel Grade: J55 K55 N80 L80 P110 " size: ....
Shinestar Steel Pipe Corporation, was established .... Australia, Russia, Brazil, Iran, UAE, SA, Nigeria, Egypt, Malaysia, Thailand, South Korea, Singapore, etc.....