[br]Body end shapes. Body ends shall [b][red]incorporate[/red][/b] a method of holding the valve securely during installlation, e.g.hexagon or provision for a C spanner.
[br]Body end shapes. Body ends shall [b][red]incorporate[/red][/b] a method of holding the valve securely during installlation, e.g.hexagon or provision for a C spanner.
阀体端面形状。阀体端面应表现为具备在安装过程中紧固阀门已达到安全目的的特征，比如，六角或与C形扳手相配套的构造。