Cooking Chinese Pork Spring Rolls

Name: Cooking Chinese Pork Spring Rolls
Ingredients: 1/4 pound barbequed pork (purchase at Asian markets or make your own Chinese barbecued pork); 3 dried black mushrooms; 1/2 cup mung bean sprouts; 1/2 medium carrot; 2 tablespoons red bell pepper (chopped); 2 teaspoons dark soy sauce; 2 teaspoons oyster sauce; 2 tablespoons chicken broth; 1/2 teaspoon granulated sugar; A few drops sesame oil (to taste); 2 tablespoons oil (or as needed, for stir-frying); 12 spring roll wrappers (or egg roll wrappers); 1 egg (lightly beaten, or 2 tablespoons cornstarch mixed with 1 tablespoon water); 3 cups oil (or as needed, for deep-frying)