Kamfanin Zhongshan Rizda Castor Manufacturing Co., Ltd. yana cikin birnin Zhongshan, lardin Guangdong, ɗaya daga cikin biranen tsakiyar kogin Pearl Delta, wanda ya mamaye yanki sama da murabba'in mita 10000. Ƙwararrun masana'antun kera tayoyi da castors ne don samar wa abokan ciniki nau'ikan samfura iri-iri, nau'ikan da salon su don amfani iri-iri. Kamfanin da ya gabaci kamfanin shine BiaoShun Hardware Factory, wanda aka kafa a shekarar 2008 wanda ya shafe shekaru 15 yana da ƙwarewar samarwa da kerawa.
RIZDA CASTOR tana aiwatar da ƙa'idar tsarin ingancin ISO9001 sosai, kuma tana kula da haɓaka samfura, ƙira da ƙera mold, tambarin kayan aiki, ƙera allurar rigakafi, simintin ƙarfe na aluminum, maganin saman ƙasa, haɗawa, kula da inganci, marufi, adana kaya da sauran fannoni daidai da ƙa'idodin da aka tsara.