... GR. B, GR. C DIN 162 St 37.0, St 44.0, St 52.0 API 5L A B X42,X46, X52, X60, ... to 18"SCH20,30,40,60,STD XSAPI5LGR.B/X42,X52,X605.8m,6m,5m to 12m randomERW Steel ... ,P110,L80/Gr.B X42,X46,X52,X56/X65,X70 and more. Certificate:API spac 5L/5CT,ISO9001:2000 Process ... Standards:API 5L,API5CT,ASTM A106,ANSI,ISO9001,DIN,EN,JIS. 1. Specification: SM400A, SM400B, SM490A, SM490B, SM520B, SM520C 2. Standard: JIS ...