Tadzipereka kupereka zosavuta, zopulumutsa nthawi komanso kupulumutsa ndalama nthawi imodzi yogulira ogula a Material,
Graphited Ptfe Packing,
Chovala Chopanda Fumbi cha Asbestos Ndi Aluminium,
Kupaka Paketi, Mtengo waukali wokhala ndi khalidwe lapamwamba komanso chithandizo chokhutiritsa chimatipangitsa kuti tipeze makasitomala owonjezera.tikufuna kugwira ntchito limodzi ndi inu ndikupempha kupititsa patsogolo wamba.
