• JY/T 0609-2017 基础教育教学资源元数据 XML绑定.pdf
• BS EN 12056-1:2000 Gravity drainage systems inside buildings - General and performance requirements.pdf
• JIS B2003-1994 General rules for inspection of valves.pdf
• JIS B2004-1994 General rules for marking on valves.pdf
• JIS B2005-1-2004 Industrial-process control valves-Part 1：Control valve terminology and general considerations.pdf
• EN 1111-1998 Sanitary tapware - Thermostatic mixing valves (PN 10) - General technical specification.pdf
• MSS SP-72 BALL VALVES WITH FLANGED OR BUTT-WELDING ENDS FOR GENERAL SERVICE.pdf