In 1954, People's Republic of China (PRC) and former Soviet Union (USSR) reached agreement to allow PRC to license produce Soviet P-6 torpedo boats under the supervision of Soviet technical advisors, with components and blue prints supplied by USSR [REF].
After completion of 12 boats at Guangzhou shipyard and 12 boats at Wuhu shipyard, USSR encountered difficulty to supply the specialized wood needed, so effort was spent to find domestic Chinese wood as a necessary replacement.