由于伸缩门发展历史相对较短，且发展迅速，市场短时间内得到极度扩张，吸引了很多小成本投资者加入到这个行业。随着伸缩门市场的不断发井盖钢模具 U型槽模具 天津水处理设备 检查井钢模具 保定公司注册 u型槽模具 流水槽模具 展和成熟，原来的很多小型伸缩门企业规模不断扩大，且这个趋势不会停止，还会发展下去。所以，将来伸缩门、电动伸缩门生产、销售会实现规模化。
Due to the relatively short history and rapid development of the expansion door, the market has been extremely expanded in a short period of time, attracting many small-cost investors to join the industry. With the continuous development and maturity of the expansion door market, many of the original small expansion door enterprises continue to expand, and this trend will not stop, will continue to develop. Therefore, in the future, the production and sales of expansion doors and electric expansion doors will be large-scale