Huisda hardware factory was found in1993,which is specialized in manuafcturing and exporting the door control hardware and building hardware.Our stronge items include the: Floor spring,Patch fitting,Door closer,Glass door handle ,Door lock,Shower hinge,sliding door hardware,Bathroom handle and bathroom aceessories,pipe connector,and sealing strips and etc.The main products brand is "Huisda" and "LANGN",this two brand have good reputation both in domestic market and international market;Huisda factory total covered area up to 30,000 square meters and the workshop area has more than 20,000 square meters and we still keeping extend our factory buliding area and importing more advanced technology and machines;