Mau Oyambirira Kupanga gypsum board, yomwe imadziwikanso kuti drywall kapena plasterboard, imaphatikizapo njira zingapo zofunika, kuphatikiza kusakaniza gypsum, madzi, ndi zowonjezera, komanso kupanga, kuyanika, ndi kumaliza matabwa. Chimodzi mwazinthu zofunikira kwambiri za ...
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