「APFE」---Global Tape and Film Industry Event "APFE" imatenga zida, ukadaulo, zida, zokutira ndi kufa-kudula matepi ndi makanema monga momwe bungwe limakhalira, likuwonetsa mwadongosolo mndandanda wathunthu wamatepi, makanema, zokutira ndi ma di
Zambiri za silicone sealant (1) ---- Gulu la silikoni sealant SILICONE, yomwe ndi gawo la organic silikoni. Amagawidwa makamaka mu mtundu wa deacetic acid, mtundu wa dealcoholization, mtundu wa deamination ndi mtundu wa deoxime. Chemica