The upper edge of the upright surface of the short edge female groove is provided with a short edge waterproof edge.
所述短边母槽，在其短边垂直面的上边沿设有短边防水沿；
When male and female (M&F) or tongue and groove (T&G) type flanges are specified, the nozzle flange facing of the vessel shall be of female or groove type.
如指定使用外螺纹及内螺纹或榫面及槽面法兰，容器设备口法兰端面应为凹槽型。
应用推荐