Mbiri Yakampani
RENZHEN ndi mwanzeru
Ninghai Renzhen Daily ntchito Co., Ltd. lili Ninghai Town, likulu la akamaumba ndi kukhitchini ku China. Ife Renzhen, anakamba 1 chitsanzo (WB-001) la mpeni sharpener mu 2007. machitidwe anali yojambula makampani pa nthawi imeneyo.