[待更新] Bestar is a dedicated provider and exporter for high performance-price ratio welded and seamless steel pipes covering various steel grades,such as tubing and casing, drill pipe, OCTG pipe,ERW pipe, LSAW pipe, SSAW pipe.1629 ◆ DIN 2391 ERW Steel Pipe ◆ API... 5L Line pipe ◆ ASTM A53,ASTM A178,A...
