Zhejiang Zhongzheng Lock Co., Ltd whose forename are Wenzhou Haitan Lock Co., Ltd. and Ouhai Jinshan Lock Factory, sepcialize in all kinds of assorted accessories of a high and low voltage switch cabinet, Ms series of switch cabinet lock, which belongs to Machinery Department, Department of Energy, Electric Power Department, and is the member of Hardware and electric appliance enterprises. We have manufactured Ms locks ofr 20 years. Our products are sold to U.S.A, South Korea, Japan, Russia and Southeast Asia areas,etc.. The products we produced have developed from medium and low grade quality to top grade, whichhas these merits such as novel ourward appearance, reasonable structure, complete functions, comfortable operation. Through many years accumulation, company has raised and accomplished a professional and specialized staff troop. To satisfy the request of clients and the latent demands, we regard quality as our lives. Our products quality are decided by quality consciousness. In 1997, we has obtained IS09001 authentication. We will continue to devote to develop and research new products, take quality supreme as aim, take stable development as managment idea, take steadfastly as guiding ideology. We will develop mechanical and electrical enterprise together to make improvement hand in hand.