Nkhani za Kampani
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Chifukwa chiyani mankhwala akukwera mtengo padziko lonse lapansi
Ogwirizana ang'onoang'ono omwe amasamala za gawo la mankhwala ayenera kuti adazindikira posachedwapa kuti makampani opanga mankhwala abweretsa kukwera kwakukulu kwa mitengo. Kodi ndi zinthu ziti zenizeni zomwe zikuchititsa kukwera kwa mitengo? (1) Kuchokera kumbali yofunikira: makampani opanga mankhwala ngati makampani oletsa kufalikira kwa mliriwu, pambuyo pa mliriwu ...Werengani zambiri -
Kugwiritsa ntchito matailosi a ceramic kumbuyo kukukula mofulumira
Pofuna kulimbitsa kumatirira kwa simenti poika matailosi, makampani onse okongoletsera koma, mwamwayi, chitukuko cha sayansi ndi ukadaulo, gulu la akatswiri ofufuza ndi chitukuko, ndiye kumbuyo kwa guluu wa matailosi kuti makampani ambiri okongoletsa achotse njerwa, njerwa, ndi ...Werengani zambiri -
Kodi kuchuluka kwa zinthu zolimba ndi chiyani? Emulsion ya polymer yolimba kwambiri idzakhala chinthu chachikulu pamsika
"Kuchuluka kwa zinthu zolimba mu guluu wopangidwa ndi madzi kumakhudza mwachindunji kapangidwe kake, nthawi youma, mphamvu yoyambira yomangirira ndi mphamvu yomangira guluu wopangidwa ndi madzi. Pakadali pano, kuchuluka kwa zinthu zolimba mu guluu wopangidwa ndi madzi womwe umagwiritsidwa ntchito kwambiri pamsika nthawi zambiri ndi 50% ~ 55%. Mu...Werengani zambiri -
Kodi njira yomangira matailosi akunja a pakhoma iyenera kukhala yotani?
Khoma lakunja liyenera kutetezedwa ku mphepo ndi dzuwa, zomwe zimayesa kupirira kwa chingamu. Chifukwa chake, kapangidwe ka khoma lakunja kuyenera kukhala kofunikira kwambiri. Lero, tiphunzira za njira yaukadaulo yomangira khoma lakunja. Choyamba, timatsuka makoma pa gra...Werengani zambiri