An kafa shi a shekarar 2000, Shanghai Rainier Precision Machinery Co., Ltd. shine babban darakta na matakin A na THK China, wanda ke da alhakin tallace-tallace da sabis na fasaha na kayayyakin THK a yankin China. Babban kamfanin ne a birnin Shanghai, kuma an kafa rassa da ofisoshi a Suzhou, Changzhou, Ningbo, Changsha, Shenzhen. A lokaci guda, kamfanin yana da lasisi na musamman a cikin yankin kasar Sin ta hanyar shahararrun alamun kasa da kasa kamar NACHI, NBK, MIKIPULLEY. Fiye da shekaru goma da aka kiyaye kyakkyawan alaƙar samar da sarkar da manyan kamfanonin masana'antu da yawa, tare da ci gaban kasuwa daban-daban, kamfanin yana aiki don gina cibiyar sadarwar tallace-tallace ta sabon nau'in kai tsaye da kuma hanyar sayan kayan aiki. Rainier ne mai samar da tsarin da yawa lissafi kamfanoni da kuma masana'antu manyan kamfanoni, kamfanin samun masana'antu yabo don sayar da high quality kayayyaki, ingancin sabis da kuma lokaci samar da ikon! Kamfanin yana da ƙwararrun ƙungiyar fasaha, wanda ya kafa cikakken tsarin sabis na fasaha. Ci gaba da amfani da karfi albarkatun cibiyar sadarwa da kuma fiye da shekaru goma na sana'a kwarewa ga abokan ciniki don kai tsaye da kuma high-quality kayayyakin zabi da bincike, samar da darajar ga abokan ciniki da kuma inganta kayayyakin inganci, don magance gajeren zagaye umarni, rage isar da lokaci, inganci rage farashi, yana da yawan kayan ajiya a Changzhou. Cikakken bayani, iri-iri mai yawa, da isasshen adadin kayan aiki suna taimaka wa abokan ciniki su sami ƙarancin kayan aiki da ingantaccen samar da kayan aiki. Rainier bi da "inganci, sana'a, inganci, raba" kasuwanci falsafar, shirye-shirye ya gina win-win hadin gwiwa tare da yawan abokan ciniki, da kuma buga mafi m makomar