Zhongshan SPEC Building Materials Co.,Ltd. is one of the most professional building material suppliers located in Guangdong China. Our team of expertise provides a various range of good performing products including aluminium windows and doors, curtain wall, aluminium cladding, aluminium louvers, aluminium railings, glass walls and architectural features, etc. Our engineering and serving process include: design, site measurement, shop drawings, budget calculation, manufacture, processing and installation. With strong financial support background and the advanced technical support, SPEC has successfully established good business relationship with various clients including contractors, developers, designers, builders and importers all around the world. An aim of our company is to support our clients to the best of our ability, growing and expanding together while cultivating our staff to be the industrial professionals while giving back to the society. Quality is our top priority for SPEC. We comply ISO9001-2008 strictly for the production by controlling every process including raw material procurement, design, fabrication, assembly, packing and shipping. We have a professional team and a standard QA/QC procedure for every process during the production. This catolague is a guide for you to know SPEC superior quality completed windows doors and curtain wall, as well as some prestigious projects completed all around the world. Based on your expectation we will provide you with the best and most satisfied solution for your individual projects.