Potstickers Chinese Dumplings

Name: Potstickers (Chinese Dumplings)
Ingredients: 1/2 pound ground pork; 5 medium size shrimp; 1 (big) leave napa cabbage (finely cut); Some chopped cilantro leaves; 3 dashes white pepper powder; 1 teaspoon shaoxing wine or Japanese sake; 1/2 teaspoon sesame oil; 1/2 teaspoon salt; 2 inches ginger (grated); 1 pack potsticker skin (choose the thickest brand); Oil for pan-frying; 1/2 cup water; Chinese black vinegar or Japanese rice vinegar (for dipping); 2 cups all-purpose flour