Beef and mutton is a general term for beef and mutton! They are cattle dismembered products and sheep dismembered products.
Sheep dismembered products are
Yangshangnaojuan, Yangshangnaozhuan, New Zealand Paijuan, New Zealand Paizhuan, New Zealand L Paizhuan, Lamb Leg Roll, Lamb Leg Brick, Lamb Leg Bag, Mutton Roll, Lamb tenderloin Roll, Little Sheep Paizhuan, Mutton High Calcium Brick, Refined Lamb Pork Roll, Lamb Pork Roll, Little Sheep Meat Roll, Lamb Chop, French Lamb Chop, Seven Bone Lamb Chop, and Sheep Scorpion.