Changda Wire Slot Factory is located in Humen --A renowned historical town of China where Lin Zexu once burned opium of British merchants in Qing Dynasty. It has convenient transportation and flourishing economy. Since its establishment, after several years' development, Changda Wire Slot Factory has become an important production base of PVC wire pipes, wire slots, PVC-U water drainage pipes in China. It owns 30-odd advanced pipe and slot production lines introduced from Germany, over 10 sets of pipe plastic injection machines and is equipped with a mould making center with a considerable scale.

With the business principle of "improving quality by technologies, creating brand names by quality", the company has produced a series of products, which are well received at home and abroad, including Changda Brand and Dayi Brand PVC inflammable wire pipes, wire slots, corrugated pipes, water feeding and drainage pipes and accessories, Ruban Brand environment protection plastic & wooden decorative materials and so on.

All products made by Changda Company must pass the inspection by Guangdong Quality Supervision & Inspection Center before being sold in the market. The company has become a member of Guangdong Quality Supervision Association, has passed ISO 9001 in 2001, won the title of GB/Y2828 Quality Reliable Unit in 2002, and was appraised as the Consumer Satisfactory Unit by PLA Management Association.