Roofing Underlayments

Located in the west suburb of Hangzhou City, BSJ Group is a professional manufacturer of building materials. The main products include: Synthetic roofing underlayment, hybrid waterproof roofing underlayment, roofing felt, and other Waterproof underlayment, Asphalt shingles, Stone coated steel shingles, Pre-painted aluminium rain gutters, PVC rainwater gutters, Fiberglass mesh, sponge rubber/EPE flooring underlayment, Marble composite panel and so on.
Covering a land area of 100,000 m2 and a building area of 6000 m2, our group owns advanced manufacturing equipment and strong technology power. Now we have formed an outstanding designing & manufacturing team composed of a few senior engineers...