目前，四川、重庆、上海和江苏等地的塑料检查井生产厂家已经形成规模，同时也出现了几种不同的生产工艺。根据生产工艺区分及其适应性如下：
At present, the manufacturers of plastic inspection wells in Sichuan, Chongqing, Shanghai and Jiangsu have formed a scale, and at the same time, several different production processes have emerged. According to the production process, the adaptability and adaptability are as follows:
○采用注塑工艺生产的塑料检查井一次成型，生产效率高，质量好。缺点是模具价较高，同时受原材料的加工性能和注塑机的功率限制，适用于管径800mm以下的塑料检查井的生产。
The plastic inspection wells produced by injection molding are formed at one time, with high production efficiency and good quality. The disadvantage is that the price of the mould is high, and it is limited by the processing performance of raw materials and the power of injection moulding machine. It is suitable for the production of plastic inspection wells with diameter less than 800mm.
○采用注塑工艺生产的拼装式塑料检查井，可按注塑机功率大小生产高度的组合部件大小。缺点是拼接处的强度和密封性能要求高，螺栓的使用寿命和耐腐蚀性能限制了该井的使用。
Assembled plastic inspection wells manufactured by injection moulding process can be used to produce the size of composite parts with high height according to the power of injection moulding machine. The disadvantage is that the strength and sealing performance of the joints are required to be high, and the service life and corrosion resistance of the bolts limit the use of the well.
○采用缠绕和二次成型工艺生产的塑料检查井优点是就地取材，上马快，可以生产不同规格大小的塑料检查井。缺点是速度慢，效率低，质量（特别是焊接质量）受人为因素影响容易出现波动。
The advantages of plastic inspection wells produced by winding and secondary moulding process are that they can be used locally and quickly to produce plastic inspection wells of different sizes. The disadvantage is that the speed is slow, the efficiency is low, and the quality (especially the welding quality) is easily fluctuated by human factors.
○采用层结涂覆法工艺二次成型的检查井优点是就地取材上马快，可以生产不同规格的塑料检查井。缺点是速度慢，难以批量生产，加上纯手工方式制作，产品尺寸和性能难以保证。生产中的环境污染和原材料无法回收，限制了它的生产和使用。
0. The advantage of the inspection wells formed by the lamination coating process is that they can produce plastic inspection wells of different specifications and get materials on the spot quickly. The disadvantage is that the speed is slow, it is difficult to produce in batches, and the size and performance of the product can not be guaranteed by pure manual production. Environmental pollution and raw materials can not be recycled in production, which limits its production and use.
○采用滚塑工艺生产塑料检查井一次成型，质量好，生产效率较高，由于模具成本低，对一些特殊规格的塑料检查井具有较大优势。该工艺适用于大口径的塑料检查井的生产和应用，最具应用前景。
The production of plastic inspection wells by rolling plastics process is of good quality and high production efficiency. Because of the low cost of moulds, it has great advantages for some special specifications of plastic inspection wells. The technology is suitable for the production and application of large caliber plastic inspection wells, and has the best application prospect.