7c Depth of Cup:Medium Approx.Cup Dia. :16.20 mm Rim Shape :Meium wide, lowered toward the outrside. Medium sharp inside. Well rounded edge with a perfect grip. Description: Probably the most wedely used model in the world. Its brilliant tone is preferred by school musicians and by arrists.
(I'm sorry,11B I also don't known).
请哪位英语好的把它翻译成汉语。