The Chinese later added HY-2 anti-ship missiles and removed some of the torpedo tubes, and redesignated as Type 6607.

[3] The ships also equipped with two projectors and two racks for depth charges and can carry up to 60 naval mines.

[3] After 1949 the PLAN negotiated with Britain through Hong Kong to buy some second-hand ships and boats but unable to do so due to the Korean War.

As a result, the PLAN turned to the Soviet Union to buy four worn-out destroyers.

The purchase was made on 4 June 1953, with prices equivalent to 17 tons of gold each at the time.