1. Thauj tog rau nkoj bolts thiab hauv paus rau cov khoom loj thiab cov khoom siv precision;
2, steel qauv: xws li steel rail, steel duav, steel duav, thiab lwm yam., nrog rau lub hauv paus ruaj infusion;
3. Secondary grouting ntawm cov khoom siv hauv paus;
4, tamping, kem reinforcement, cog steel tuav;
5, subway, khau thiab menyuam yaus, underground engineering rov qab ua si siv seam embedded;
6. Txhim kho cov pob zeb ua vaj tse thiab kho cov dej ntws;
7. Sib tsoo grouting ntawm ntau yam haujlwm yooj yim thiab ntau yam kev kho.