ѹÁ¦ÊÔÑé:GB/T13927-1992;JB/T9092-1999
Èý¡¢dn300µç¶¯¿ª¹ØÍ¸·çµû·§/dn300·¨À¼µç¶¯×ßË®µû·§Ìصã
1¡¢µç¶¯Í¸·çµû·§½ÓÄÉÖÐÏßʽµú°åÓë¶Ì½á¹¹¸Ö°åº¸½ÓµÄÐÂÐͽṹÐÎʽÉè¼ÆÖÆÔìµÄ£¬£¬£¬£¬£¬£¬×èÖ¹¸ßÎÂÅòÕ͵ÄÓ°Ï죬£¬£¬£¬£¬£¬²Ù×÷ÇáÓ¯¡£¡£¡£¡£¡£
2¡¢ÄÚÎÞÁ¬¸Ë¡¢ÂÝ˨µÈ¡¢ÊÂÇé¿É¿¿¡¢Ê¹ÓÃÊÙÃü³¤¡£¡£¡£¡£¡£¿£¿£¿£¿ÉÒԶ๤λװÖ㬣¬£¬£¬£¬£¬²»ÊܽéÖÊÁ÷ÏòÓ°Ïì¡£¡£¡£¡£¡£
3¡¢Éè¼ÆÐÂÓ±¡¢ºÏÀí¡¢½á¹¹ÆæÒ죬£¬£¬£¬£¬£¬ÖØÁ¿Çᣬ£¬£¬£¬£¬£¬Æô±ÕѸËÙ¡£¡£¡£¡£¡£
4¡¢µç¶¯Í¸·çµû·§²Ù×÷Á¦¾ØÐ¡£¬£¬£¬£¬£¬£¬²Ù×÷Àû±ã£¬£¬£¬£¬£¬£¬Ê¡Á¦ÁéÇÉ¡£¡£¡£¡£¡£
5¡¢µç¶¯Í¸·çµû·§½ÓÄÉ˳ӦµÄÖÊÁÏÒÔÖª×ãµÍ¡¢ÖС¢¸ß²î±ð½éÖÊÎÂ¶ÈÆä¼°ÇÖÊ´ÐÔ½éÖʵȡ£¡£¡£¡£¡£