"What kind of guide wire do you guys use?" Zheng Ren asked."Cook's.""Alright." Zheng Ren was not picky. He had studied several types of guide wires in private. To reach Zheng Ren's skill level in surgery, the slight difference in elasticity between the micro-guide wires was very obvious.There was no difference between good and bad. There was only a difference in how to use them. There was a huge difference between the subtleties, the size of the force, and the judgment of the angle.Cook..."Microwires." Zheng Ren stretched out his hand.Chief Jiang's movements were a little slow. He only placed the microwires into Zheng Ren's hand a few seconds later.Zheng Ren stuffed the microwires into the artery sheath and began to guide the wires inside."Doctor Zheng, how often did you go on stage to perform surgery at the Imperial Capital Hospital?" Chief Jiang asked.