Hnav khaub ncaws

Hlau hlua hlua rau khaub ncaws siv galvanized steel hlau hlua los yog stainless hlau hlau hlua nrog cov tub ntxhais sab hauv, thiab sab nraud yog coated nrog PVC los yog PU yas.

Kev siv lub zog siab carbon steel thiab stainless hlau ua cov ntaub ntawv raw, ua rau cov khaub ncaws hnav ntau dua.

Ob leeg PVC thiab PU yog siv cov ntaub ntawv zoo ib puag ncig, uas yog mos thiab tsis muaj ntxhiab tsw.