China API Spec 5CT H40 J55 K55 M65 L80 1/9cr/13cr R95 N80 1/Q C90 T95 C110 P110 Q125 Seamless Steel Pipe, Find details about China Steel Pipe, Steel Tube from API Spec 5CT H40 J55 K55 M65 L80 1/9cr/13cr R95 N80 1/Q C90 T95 C110 P110 Q125 Seamless Steel Pipe