... LengthAny LengthAny LengthAny LengthAny LengthExecutive StandardASTM/DIN/JIS/GB, API 5L, API 5CT, ASTM A53, ASTM A252, ASTM A500, ASTM A178 ... ST52, Q195-Q345, 20#, 16Mn, A53(A, B), API J55, API K55, API N80, API L80, API P110, St37, GR.A, A25, A25P, A, B ... etc.EndPlain end, beveled, cut square, grooved, threaded and coupling, etc.Applicationline pipe for use in pipeline transportation systems in ...