Cov xwm txheej tshwm sim hauv lub lag luam npauj npaim valve nrog cov tswv yim kev loj hlob, kev lag luam zoo thiab kev sib tw toj roob hauv pes 2026
Cov kev tshawb fawb ua los ntawm In4Research muab cov kev pom tshwj xeeb rau cov qauv kev lag luam, kev lag luam tseem ceeb (tsav tsheb, kev txwv, cov qauv thiab lub sijhawm), kev sib tw kev sib tw, thiab cov kev lag luam sib koom ntawm cov players tseem ceeb hauv Lug butterfly valve kev lag luam....
saib kom meej