The Type 021 missile boat is a Chinese version of the Soviet Osa-class missile boat. The class consists of several versions with different armament. Later, the Type 021 was upgraded to the Houdong-class that is capable of carrying anti-ship missiles.
Keep your eyes open for walruses while boating EH just sayin .
For their time they were pretty lethal missile boats, but had a few shortcomings.The Indians used them successfully in 1971 and sank a few Pakistani navy destroyers and the Egyptians used them against the filthy Zionists too, not with as much success as India.