... Reference to MIL-STD-200Established in 2003, Shanghai OLY industry Co., Ltd. is a joint venture, specializing in silk screen printing ... , chromatic meter, we are one of the leading companies in silk screen printing industry.OLY has years of experience ... principles and are always seeking like-minded companies.Shanghai Ouerya Industry Co.,ltd.Add : NO.151, Cangjing Road, Songjiang District, Shanghai, ...