Phau Ntawv Qhia Multi-Way Valve yog dab tsi ? Multi-way li qub yog cov khoom siv uas tswj cov dej ntws ntawm cov lus qhia sib txawv. Lawv tau siv dav hauv ntau yam lag luam, suav nrog roj thiab roj, tsim hluav taws xob, thiab kev ua tshuaj lom neeg. Ntau txoj kev li qub tuaj yeem ua haujlwm manually, mechanically, xaiv ...
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