Shanghai kejian Chemical Co., Ltd located in the southeast of Shanghai China and covers an area of 12,000 m2,and it is oriented to devote itself to the research and development of new and high technology products, with good developing ability and advanced techniques, Kejian produces all kinds of water-proof butyl tape and related sealant for car industry, FRP industry, communication industry, building industry and so on.. we now have got 6 invention patents at hand ,and have passed ISO9001 Quality Control Certification, ISO14001 Environment Control Certification, ISO 18001 Occupational Health and Safety System Certification.Our advantage is: Top class quality, reasonable price ;Tailored products for customers and strong R&D ability; Responsive management structure ; Smooth Logistics network; perfect after-sales service.