C2774 Kilo-class Sub

"President Qin, welcome to our Ruby Design Bureau for an inspection." Spesky had a smile on his face. "Our Ruby Design Bureau is the pride of the entire Bear Country. Now... We have entered a new era, the submarine that we designed... Not only will it be used for its own use, but it will also create a new era of exports... Now, allow me to introduce our Type 877 submarine