in bundles,water proof plastic packing, in bulk etc .
Standard
BS EN10296, BS EN10025, API, API 5L, GB/T 3091-2001, GB/T 3090-2000, ASTM A106-2006, ASTM A53-2007, DIN EN 10216-1-2004, DIN EN 10217-1-2005, JIS G3452-2004
Grade
A53-A369, A53(A,B), A106(B,C), 16mn, 16mn, API J55-API P110, API J55, API N80, 10#-45#, 10#, 45#, Q195-Q345, Q235, Q345, Q195