In the 1970s, there were the following technical secondary schools in Guangzhou: :, Guangzhou Maritime College, Guangzhou Haizhu District, Huangpu Village, Xingang East Road, Guangzhou Railway Machinery School, Guangzhou Baiyun District, No.100 Qinglong Middle Road, Shijing Street, Guangdong Polytechnic Vocational and Technical School (formerly Guangdong Building Materials School), Guangdong Environmental Protection Vocational and Technical School, No.162 Yunquan Road, Tianhe District, Guangzhou, No.5 Courtyard, Yuancun West Street, Guangzhou Tianhe District, Guangdong Water Conservancy and Electric Power Vocational and Technical College, No.1 Zhanyizhi Street, Guangzhou Tianhe District, guangdong overseas chinese vocational school