JB/T 4051.1
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š Foreword / åčØ ai_extracted
ę¬ę åęÆåƹJB 4051.1ā85ćę°ēøé²éēŗø ęęÆę”ä»¶ćčæč”ē修订ć修订ę¶ļ¼åƹåę åä½äŗē¼č¾ę§ äæ®ę¹ļ¼äø»č¦ęęÆå 容沔ęååć ę¬ę åčŖå®ę½ä¹ę„čµ·ļ¼ä»£ęæJB 4051.1ā85ć ę¬ę åē±å Øå½éå±äøééå±č¦ēå±ę ååęęÆå§åä¼ęåŗå¹¶å½å£ć ę¬ę åčµ·čåä½ļ¼ę¦ę±ęęäæę¤ē ē©¶ęć ę¬ę åäø»č¦čµ·čäŗŗļ¼å“ę£åćēēæ č²ćåęÆ ę¦ćē½ę°øē§ćęøøåæę°ćå“ę„ęć JB/T 4051.1ļ¼1999
š References & Relations / å¼ēØäøå ³č
normative_reference
GB/T 450-1989
normative_reference
JB/T 4051.2-1999
normative_reference
SH/T 0217-1992
Content extracted by AI. Not officially verified.