y audience began to shout: < br > "Master Qin bid!" < br > "Master Qin, you have to be hard!" < br > "Master Qin, don't let us look down on you!" < br > "Master Qin, are you really a pussy You were so...ster is naturally produced at the bottom of the sea. After identification, the shell is 100 years old and has been soaked at the bottom of the sea for thousands of years after death. The shell has sho...