... and structural steel pipes for different applications. pipe namesteel gradeCasing Pipe/Oil pipe Seamless As per API-5CT standard/ISO11960H40\J55 ... endL245,L290,L320,L360,L390,L415PSL 1:A,B,X42,X46,X52 B Structure seamless pipe20#,35#,45#,Q345,Q345B, ... ,20gProtection:External bare, or External coated with black or anti rusty Mill VarnishExternal / Internal FBE coatedExternal Three-Layer Polyethylene ...