Polysulfide
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SV-998 Polysulphide Sealant rau Insulating iav
Nws yog ib hom ob chav kub vulcanized polysulphide sealant nrog kev ua tau zoo tshwj xeeb tshaj yog tsim rau insulating iav.Qhov no sealant muaj elasticity zoo heev, cua kub nkag mus rau hauv cov pa roj thiab kev ruaj ntseg adherent rau ntau yam iav.
