We are located in the southeast of Shanghai, China and cover an area 20,000 square meters. devote ourselves to research development new high technology products, with good developing ability advanced techniques. produce all kinds water-proof butyl tapes ...

SHANDONG OYADE Hollow Glass Materials Co., Ltd is one of the biggest companys who specialized in manufacturing materials for glass. OYADE GROUP has more than 350 workers , and also research institute Italy mainly focus on development precast concrete ...