Madzi amayenera kusinthidwa pafupipafupi kuti chozizira choziziritsa mpweya chizitengera malo ake ogwirira ntchito. Mwachitsanzo,
1.Ngati malo ogwira ntchito ndi labotale kapena chipinda chokhala ndi mpweya, madzi amatha kusinthidwa theka lililonse la chaka kapena chaka chimodzi;2.Ngati malo ogwirira ntchito ndi otsika, monga malo ogwirira ntchito, akulangizidwa kuti asinthe madzi mwezi uliwonse kapena mwezi uliwonse ndi theka.
Chifukwa chake, ogwiritsa ntchito amatha kukonza ma frequency osintha madzi potengera malo ogwirira ntchito pamakina ogwiritsira ntchito laser.Pankhani yopanga, S&A Teyu adayika zida zopangira yuan yopitilira miliyoni imodzi, kuwonetsetsa kuti njira zingapo zimachokera kuzinthu zazikuluzikulu (condenser) za mafakitale oziziritsa kukhosi mpaka kuwotcherera kwachitsulo; ponena za mayendedwe, S&A Teyu yakhazikitsa malo osungiramo katundu m'mizinda ikuluikulu ya China, atachepetsa kwambiri kuwonongeka chifukwa cha mayendedwe akutali a katunduyo, komanso kuwongolera magwiridwe antchito; pankhani ya pambuyo-malonda utumiki, nthawi chitsimikizo ndi zaka ziwiri.
