Paub qhov xav tau ntawm ib lub taub hau raj thiab tom qab ntawd hais
Dec 31, 2022
Tso lus
(1) Daim ntawv teeb tsa: Nws puas yooj yim rau punch qhov? Puas yog lub turnbuckle tsau installation? Tseem yog qhov yooj yim txhim kho ntawm lub ntsej muag flange? -Siv cov nyiaj los pab txiav txim rau daim ntawv ntawm tus lej kos npe.
(2) Cov xwm txheej ua kua: cov dej zoo li cas? Puas yog corrosive? - Txheeb xyuas cov khoom siv sab nraud ntawm lub raj cua sov nrog cov nyiaj, thiab yuav ua li cas xaiv cov khoom siv sab nraud.
