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    ... of the industry makes innovation particularly challenging. To obtain a patent, you need to come up with something fundamentally new and unique, and our specialists have done it. We have patented our own technology for gluing asphalt shingles known as bitumen welding. This is a unique technology unmatched both in Russia and the US. Usually, asphalt shingles sinter and turn into a single waterproof cover under sunlight. Our technology provides for glueing together the asphalt shingles prior to mounting ...

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