Suzhou Huayan Humidity Card Co., Ltd., established in 2008, specializes in the production of various specifications of humidity indicator cards (HICs), various environment-friendly desiccants (bulk desiccant), moisture-proof and rust-proof packaging products like aluminum foil bags, anti-static shielding bags and others. The R&D, production, sales and after service of Huayan products are consolidated into a moisture-proof solution to serve customers in a better and more convenient way. The company is in conformity with ISO9001 Quality Management System Standard, and the products comply with the quality requirements of the EU RoHS directive, REACH and DMF-free test reports.

Based on the mature technology of Huayan humidity indicator cards, new type environmental-friendly “cobalt-halogen-metal-free humidity cards” have been developed. These products are characterized by high accuracy, easy operation, convenient observation, wide indication range, complete degradation and environmental-friendliness and therefore have been put into the market extensively. Along with the continuous improvement of the manufacturing technique, products like impermeable back humidity indicator cards, protective layer back humidity cards and adhesive humidity indicator cards are provided. Special requirement of customers dealing in different trades for humidity indicator cards can be satisfied thanks to our R&D team, professional design, manufacture departments and therefore the cards required by customers can be provided considerately and in time. A great deal of products have been used in industries like circuit boards (PCB), semiconductors, electronic appliances and optical instrument etc