Hangzhou Qualpro Technology Co., Ltd., located in beautiful Hangzhou City of China, is specialized in the field of access panels, HVAC products, building and decorating materials. The production is according to the standards of GB, DIN, BS, EN, JIS, ANSI, ASTM, ASME, ISO, CIS, etc. We can manufacture products according to customers' drawings or samples. Over many years experience of manufacturing and exporting to Europe, USA, Australia, the Middle East and South America, we have strict ...