00609nam a2200205 4500 20260608203244.0 260224s2013 dcu CAJA 11 Spec 20B Open die shaped forgings for use in the petroleum and natural gas industry API specification 20B API 20B 1ra. ed. Washington American Petroleum Institute, API 2013 11/07/2016 ; 02/05/2016 20 p. NORMA American Petroleum Institute, API 105 189532 189532 0 0 0 0 257351 BAAB BAAB CAJA 11 2026-03-06 200061771 0 CAJA 11 200061771 2026-03-06 00:19:42 2026-03-06 Libro