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News
On May 30,2018 , the 16th China International Roofing and Building Waterproof Technology Exhibition hosted by China Building Waterproof Association, American Roofing Engineering Association and Ger...
On June 28, 2018, "annual meeting of single-ply roof technology chapter 2018 and the 12th single-ply roof technology symposium" was held in Changzhou city ,China .
The 8th anniversary celebration of Otai was held at Otai factory on Oct.8th , 2018. All employees of the company gathered together to share the happiness and joy from this big family.
Waterproofingworksisoneofthemostimportantaspectsoffamilydecoration.Forkitchendecorationwaterproofingworks,whatmattersshouldwepayattentionto?Forthekitchendecorationwaterproofingworks,beforethekitchende
1,determinewaterproofandpluggingschemeItisnecessarytoconducton-siteinvestigationbeforeplugging,findoutthesiteconstructionsituation,analyzethecausesofleakage,findoutthelocationofleakage,thewidth,length