What are the Tibet projects in the third-line construction?

Linzhi Wool Mill. 1964, the state proposed to strengthen the "third line" construction, and the logistics department of Tibet Military Region proposed the idea of setting up a wool mill. Premier Zhou Enlai instructed that Shanghai, which has the strongest wool spinning technology and equipment in China, should give its full support. This task was given to Shanghai Textile Bureau, which in turn gave it to Shanghai Maoma Textile Company. 1966, the Weilun Wool Textile Factory of Shanghai Maoma Textile Company moved to Bayi Town, Linzhi, Tibet, 4000 kilometers away, and established the first modern textile factory in Tibet-Linzhi Wool Textile Factory in Tibet.