Yantai tonghua waterproof and in sulation engineering G roup co., ltd. Yantai Tonghua waterproof materi- aos factory . Yantai tonghua water & proof and insulation engineering Group co ,ltd is a multiple company including scientist production, des- ign construction .NOW, they have 100 workers middle and high engi- neers 39 persons main production .
Integrat spout stiff polyure thane waterproof insulation complex roofing (shorter form Tonghua complex roofing ). They had owned chinese patent patent NO 98207206.6,stiff poly use thane waeproof insulation complex board(short form Tonghua complex board). Patent NO.98201157.1, single double Pure poly use thane paint acrylic acid system high molecule waterproof paintting.

     In these years,we used this Patent Production and technology, construct square, s 50 million kilometer according construct engineering administrative bureau building of Wu Xi City,Zi Jiang Paintting factory building of Shang Hai. construct technical tesearch institute of shandong prorince , train base of Beijing military command etc . Our company used the complex of inteprat spout polu use thane in the engineer of the state council adminisrative buteall of Beijing solved a

problem of seepage about wood roof and made the room's temperature up to warming iin wonter and cooling in summer in 1998.9 .We completed the waterproof and insulatkion engineer of the Great Hall of the people's roofing . In 1999, we completed the woodproof and insulation of country's grain stock using our good ekngineer and higher quality of shandong province jiling province etc. We owned certificate of residense production certificate of construc dept science and technology achievement awarded a certificate of construct xommittee of shandong owned the Gold medal of the seventh chinese patent fair , the third class medal science and technology progressing of shandong . It is torch plan ptern in 1999 ,No 99061121.

    According the requirment of the market ,our company caught the chance, faster the steps of science technology research , improved enterprise manage , we will contrbute to socialist and deviliping of enconomy.