On 19th Nov 2016, another good news came from Sanxin Project that breakthrough between blind return-air shaft at -870ml & new vent shaft was achieved.
The connection way between blind return-air shaft at -870ml & new vent shaft is 805.6m in length. To make sure the successful breakthrough, JCHX made detailed plan and efficient arrangements, took effective and all necessary measures with the support from the client and HQ.
The successful breakthrough between blind return-air shaft at -870ml & new vent shaft fully represent the strong technique and good management of JCHX, which also won high recognition from the client.
