Txheeb Lub Pvc Yeeb Nkab Ua Tau Zoo thaum Yuav Nws

Thaum xaiv PVC xov xov yeeb yaj kiab, nws yog qhov yuav tsum tau kuaj xyuas qhov zoo ntawm cov yeeb nkab kom paub tseeb tias cov yeeb nkab tiv thaiv yuav tsis ntsws hauv khoov thiab tawg. Ua ntej tshaj, xyuas seb sab nrauv phab ntsa ntawm cov yeeb nkab puas muaj cov chaw tsim tshuaj paus' s kos thiab nplaim hluav taws retardant cim; ntxiv rau, zes cov yeeb nkab nrog hluav taws, thiab mam li khiav nws tawm ntawm qhov hluav taws kub kom pom seb nws yog tus kheej tua hluav taws hauv 30s; qhov thib peb, sim khoov cov yeeb nkab 90 degrees, thiab saib seb qhov ntsej puas zoo tom qab khoov;