Kwa zaka zoposa 19, Guangzhou Teyu Electromechanical Co., Ltd. (yomwe imadziwikanso kuti S&A Teyu) ndi bizinesi yokonda zachilengedwe yomwe idakhazikitsidwa mu 2002 ndipo yakhala ikudzipereka pakupanga, R&D ndi kupanga makina opangira firiji m'mafakitale. Likululi lili ndi malo okwana 18,000 square metres, ndipo lili ndi antchito pafupifupi 350. Ndi kugulitsa kwapachaka kwa makina ozizirira mpaka mayunitsi 80,000, malondawa agulitsidwa kumayiko ndi zigawo zopitilira 50.
S&A Dongosolo lozizira la Teyu limagwiritsidwa ntchito kwambiri m'makampani 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&A Teyu ultra-precision control control system imaperekanso njira zoziziritsira zomwe makasitomala amagwiritsa ntchito, monga picosecond ndi nanosecond lasers, kafukufuku wa sayansi yachilengedwe, kuyesa kwafizikiki ndi madera ena atsopano.
Ndi zitsanzo zonse, S&A Teyu yozizira dongosolo ali ndi ntchito mochulukira m'mbali zonse ndipo wakhazikitsa bwino mtundu fano mu makampani ndi kulamulira molondola, ntchito nzeru, kugwiritsa ntchito chitetezo, kuteteza mphamvu ndi kuteteza chilengedwe, wotchedwa "lndustrial Chiller Katswiri".