Kwa zaka zopitilira 22, Guangzhou Teyu Electromechanical Co., Ltd. (wotchedwanso S&A Chiller) ndi bizinesi yokonda zachilengedwe yomwe idakhazikitsidwa mu 2002 ndipo yakhala ikudzipereka pakupanga, R.&D ndi kupanga mafakitale firiji dongosolo. Likululi lili ndi malo okwana 30,000 square metres, ndipo lili ndi antchito pafupifupi 500. Ndi kugulitsa kwapachaka kwa makina ozizirira mpaka mayunitsi 160,000, malondawa agulitsidwa kumayiko ndi zigawo zopitilira 100.
S&Dongosolo lozizira la Chiller limagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana opanga mafakitale, kukonza laser ndi mafakitale azachipatala, monga ma lasers amphamvu kwambiri, ma spindles othamanga kwambiri amadzi, zida zamankhwala ndi madera ena akatswiri. S&Dongosolo lowongolera kutentha la Chiller limaperekanso njira zoziziritsira zomwe zimatsata makasitomala pazogwiritsa ntchito zapam'mphepete, monga ma lasers a picosecond ndi nanosecond, kafukufuku wasayansi wazachilengedwe, kuyesa kwafizikiki ndi madera ena atsopano.
Ndi zitsanzo zambiri, S&Dongosolo lozizira la Chiller likugwiritsidwa ntchito mochulukirachulukira m'magawo onse ndipo lakhazikitsa chithunzithunzi chabwino kwambiri pamsika ndikuwongolera molondola, kugwiritsa ntchito luntha, kugwiritsa ntchito chitetezo, kuteteza mphamvu ndi kuteteza chilengedwe, zomwe zimadziwika kuti "lndustrial Chiller Expert"