Shanghai Shengchong Waterproof Material Co., Ltd is the head office in Mainland China of Taiwan Shenglong Co., Ltd. which was founded in 1987, specializing in the production of Shenglong brand waterproof materials, leak blocking materials, water-sealing needles, high pressure injection machines, high pressure grouting machines, reinforcement materials, heat resistance materials, heat insulation materials as well as other products. Our company also has a professional team working on the ...