000 00765nam a2200253 4500
005 20260608203156.0
008 260224s2010 dcu
082 _aCaja 18-B
210 _aRP 621
245 0 0 _aReconditioning of metallic gate, globe, and check valves
_bAPI Recommended Practice 621
246 1 _aAPI 621
250 _a3rd. ed.
260 _aWashington
_bAmerican Petroleum Institute, API
_c2010
270 _a09/08/2016 ; 13/02/03
300 _a26 p.
773 _g
942 _cNORMA
110 2 _aAmerican Petroleum Institute, API
_9105
650 0 _aNormalización
_9106
650 0 _aNormas API
_9109
650 0 _aVálvulas
_9176
650 0 _aVálvulas de seguridad
_9287
999 _c143853
_d143853