No nā makahiki he 19, ʻo Guangzhou Teyu Electromechanical Co., Ltd. (ʻike ʻia ʻo S&A Teyu) he ʻoihana ʻenehana kiʻekiʻe eco-friendly i hoʻokumu ʻia ma 2002 a ua hoʻolaʻa ʻo ia i ka hoʻolālā ʻana, R&D a me ka hana ʻana i ka ʻōnaehana refrigeration ʻoihana. Ua uhi ke keʻena poʻo i kahi o 18,000 square meters, a he 350 mau limahana. Me ka nui kūʻai makahiki no ka ʻōnaehana hoʻoluʻu a hiki i 80,000 mau ʻāpana, ua kūʻai ʻia ka huahana ma mua o 50 mau ʻāina a me nā ʻāina.
S&A Hoʻohana nui ʻia ka ʻōnaehana hoʻoluʻu ʻo Teyu i nā ʻano hana ʻenehana, ka hoʻoponopono ʻana i ka laser a me nā ʻoihana lapaʻau, e like me nā lasers mana kiʻekiʻe, nā spindles kiʻekiʻe kiʻekiʻe o ka wai, nā mea lapaʻau a me nā ʻoihana ʻoihana ʻē aʻe. S&A Hāʻawi pū ʻo Teyu ultra-precision temperature control system i nā ʻoluʻolu hoʻoluʻu e pili ana i ka mea kūʻai aku no nā noi ʻokiʻoki, e like me nā laser picosecond a me nanosecond, noiʻi ʻepekema biological, hoʻokolohua physics a me nā wahi hou.
Me nā hiʻohiʻona holoʻokoʻa, S&A ʻO ka ʻōnaehana hoʻoluʻu ʻo Teyu e hoʻohana nui ʻia i nā kahua āpau a ua hoʻokumu i kahi kiʻi hōʻailona maikaʻi loa i ka ʻoihana ma o ka mana pololei, ka hana naʻauao, ka hoʻohana palekana, ka mālama ʻana i ka ikehu a me ka pale ʻana i ke kaiapuni, i kapa ʻia ʻo "Industrial Chiller Expert".