Changshu City Liantang Insulation Materials Co., Ltd. Was founded in June 1985, is located in Changshu City, the western suburbs, with convenient transportation. The company covers an area of ​ ​ 15, 000 square meters, while construction area of ​ ​ 8, 000 square meters. We have 150 employees, including 46 engineers and technicians.

The company specializes in the production of polyimide film, polyimide composite film (FH, FHF), polyimide adhesive film (QF6253), polyimide insulating sleeve (QF6754), polyimide glass varnished cloth, polyimide wire enamels, aromatic polyimide adhesive glue (QF1453), polyimide modified silicone pressure sensitive adhesive tape, modified polyimide glass varnished cloth (with the voice coil), alcohol-soluble polyamide imine compound foil (with the voice coil), corona-resistant polyimide film, polyimide fire mask, black polyimide film and other insulation materials. Applications from electrical, electronics development electronics industry, microelectronics industry, from industrial development to the civil aviation, aerospace, nuclear industry and military industry. Nearly more than two hundred and fifty companies applying the company's various products. Some products are exported to North America.