Ma'anshan 8 + 8 waterproof Engineering Department was established in 2009, is a professional undertaking: MOS housing trap, Ma'anshan roof trap, water trap works old and new concrete structures (floor cracks, expansion joints, settlement, connecting joints, parapet, outer wall cracks, awning, kitchen, bathroom, water towers, pools, basements, elevator shafts, swimming pools) and other water trap and the overall waterproofing. Company Website http://www.8jia8.net http://1.110ld.cn/ Address: mountain rain Ma'anshan Village 13 103 No.