门体一般整体铸造和机加工

The door body generally adopts the structure of a panel and reinforced ribs, and the panel can be made into a plane or an arch.
门体一般采用面板与加强肋的结构，面板可做成平面或拱形。

The door body is generally cast and machined as a whole, but the larger size can be used in block assembly.
门体一般整体铸造和机加工，但尺寸较大的可采用分块组装式。

The door body is generally used as an integral metal water seal, which doubles as a supporting slide.
门体上一般采用整体式金属止水，兼做支承滑块。

The metal water seal is fastened to the door body with countersunk head screws made of the same material, and the head of the screw is finished together with the water seal.
金属止水用同材料制作的沉头螺钉紧固在门体上，螺钉头部与止水面一起精加工。

Some larger sizes can also use "P" type rubber sealing.
一些尺寸较大的也可采用“P”型橡皮止水。

Two, the door frame
二、门框

The door frame is the connection component between the cast iron gate and the foundation, which is equivalent to the buried part of the flat steel gate.
门框为铸铁闸门与基础之间的连接构件，相当于平面钢闸门的埋设部分。

The door frame comprises two parts: the lower door frame and the upper guide rail.
门框包括下部门框和上部导轨两部分。

The lower door frame is generally cast as a whole.
下部门框一般整体铸造加工。

The guide rail can be connected with the door frame by bolts (screws), or cast with the lower door frame as a whole, and the top of the guide rail should be higher than the horizontal center line of the door body when the door body is opened.
导轨可用螺栓（螺钉）与门框相接，或与下部门框整体铸造，在门体开启到的位置是，导轨的顶端应高于门体的水平中心线。