M'makampani amakono otentha kwambiri, silicon carbide graphite crucible yakhala chinthu chofunikira kwambiri chifukwa chamafuta ake abwino kwambiri, kukana kwamankhwala ndi mphamvu yayikulu, ndipo imagwiritsidwa ntchito kwambiri pakusungunula zitsulo, kupanga magalasi, ...
Werengani zambiri