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Zoo Fluorocarbon Hlau Matte Tu Txheej Rau Hlau Qauv
Cov khoom lag luam yog tsim cov tshuaj fluorocarbon, cov khoom noj tshwj xeeb, xim, cov kuab tshuaj thiab cov khoom sib ntxiv, thiab cov tshuaj ntsuab txawv teb yog pab pawg B.
Cov khoom lag luam yog tsim cov tshuaj fluorocarbon, cov khoom noj tshwj xeeb, xim, cov kuab tshuaj thiab cov khoom sib ntxiv, thiab cov tshuaj ntsuab txawv teb yog pab pawg B.