To solve the traditional long-term and labour-consuming problems existed in communicationpipe-line man-hand hole, a new type man-hand hole by processing hard material PVC is proposed.
为了解决传统通讯管道人手孔存在的费时费工等问题,采用硬质聚氯乙稀板材加工制造了一种新型人手孔。
2
Guang zhau the Undergroumd 2nd Line will pass through Hua nan Express Way. During construction communication of the express way should not be cut off. Pipe jacking method is suggested.