Uhlelo lokusebenza lwe-TBM Annulus Grout lubala isisindo nevolumu yezingxenye A no-B nge-cubic meter ngayinye ye-grout, kanye nama-retarders namanzi adingekayo. Ngokwengeziwe, uhlelo lokusebenza lubala amavolumu esikali selabhorethri adingekayo ngelebhu noma ukuhlolwa kwesayithi.
Kubuyekezwe ngo-
Mas 18, 2024