Its comprehensive performance is unmatched by other special engineering plastics and regarded as expert of the problem. It is widely used in aerospace, aerospace, mechanical, electrical, atomic, microelectronics, thin film, LC display and other high-tech fields.

After years of market cultivation, polyimide is used as sealing material, structural material, heat insulating material, friction material, high temperature coating.

Nanjing Yuwei New Material Co.,Ltd manufactures ultra-high temperature resistant special engineering plastics - polyimide PI profiles (rods / plates / tubes), inject molding, machining of various PI parts.

Polyphenylene sulfide (PPS) has excellent comprehensive properties in chemical and high temperature environments, including wear resistance, high load capacity and dimensional stability.

Polyphenylene sulfide (PPS) has excellent comprehensive properties in chemical and high temperature environments, including wear resistance, high load capacity and dimensional stability.

Polyphenylene sulfide (PPS) has excellent comprehensive properties in chemical and high temperature environments, including wear resistance, high load capacity and dimensional stability.

It can be dissolved in water containing electrolyte and not in oil medium, in which the dissolution rate is related to the temperature used and the structural characteristics of the application. The specific gravity is 1.5g/cm3-1.8g/cm3 and the maximum operating temperature is 200℃ and it is suitable for water and gas wells.

With the selection of special plastic composite materials and special composite formula and in combination with metal material bridge plug, the drillable special composite bridge plug has been tested and developed successfully, which has been supplied to major domestic oil and gas field companies.

According to the customers' needs in the petroleum industry, Nanjing Yuwei has developed series of soluble (degradable) metal alloy rods for different environments, which are suitable for matching up with the tools for the production of soluble (degradable) fracturing balls, soluble (degradable) bridge plugs, soluble (degradable) sliding sleeves, ball sockets and etc.