因为检查井模具模具不存在固定尺寸的标准，而且各地区对于地下管道材质的使用也不同，比如水泥管和波纹管的不同点，就可以在检查井模具内径大小以及壁厚上出现区别了，因为管道大小配比的井体内径是不同的， 所以在模具制作上就体现了不同点了，而且对于高度的掌握大多是在1.8米以上的标准施工，所以很多预制厂需要准备调节端，比如20厘米高、30厘米高、50厘米高的，这样就可以满足不同高度井体的对接了。
Because there is no fixed size standard for the inspection well mold, and the use of underground pipe materials is different in various regions, such as the difference between cement pipe and bellows, there can be differences in the inner diameter and wall thickness of the inspection well mold. Because the inner diameter of the well body with the pipe size ratio is different, there are differences in the mold production, Moreover, most of the height control is the standard construction of more than 1.8 meters, so many prefabrication plants need to prepare the adjustment end, such as 20 cm high, 30 cm high, 50 cm high, so as to meet the docking of well bodies with different heights.