Peb yuav teb rau hauv 12 teev, thov xyuam xim rau email nrog cov lus tom qab “@bwvalves.com”.

Kuj, koj tuaj yeem mus rau Hu rau nplooj ntawv, uas muab ib daim ntawv qhia ntxaws ntxiv, yog tias koj muaj lus nug ntau ntxiv rau cov khoom lossis xav tau cov kev daws teeb meem li qub.