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Momwe mungasankhire chosindikizira chitseko ndi zenera, kodi mungadziwe chomwe chosindikizira chili ndi mafuta otani?
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Kodi silicone sealant ndi chiyani? Kodi kusiyana pakati pa neutral acid silicone sealant ndi kotani?
1. Kodi silicone sealant ndi chiyani? Silicone sealant ndi phala lopangidwa ndi polydimethylsiloxane ngati chinthu chachikulu chopangira, chowonjezeredwa ndi crosslinking agent, filler, plasticizer, coupling agent, ndi catalyst mu vacuum state. Limadutsa kutentha kwa chipinda. Limachitapo kanthu ndi w...Werengani zambiri