Reverse-engineering of the RPG-7 began in the early 1960s, and demonstrations were made to senior PLA officials in 1964. The Chinese copy of the RPG-7, designated Type 69, received its design certificate in 1970. The weapon entered service with the PLA in the mid-1970s, and took part in the 1979 Sino-Vietnam border conflict to provide platoon-level anti-personnel and anti-obstacle fire support. Its performance was highly praised by the troops.