Project requirements: The skin color is light yellow, the meat surface is oily, the muscle surface is rose or pink, the fat surface is white or light-colored, shiny, and the taste is unique to this product. Moderately salty, delicious and long aftertaste. Condition: The skin and meat are not separated, the muscles are tight, the meat is tender, the cut surface is smooth and shiny. Moisture, % ≤ 58 Salt content (calculated as NaCl), % ≤ 11.0 Peroxide value (calculated as fat), g/100g ≤ 0.5 Lead (calculated as Pb (calculated), mg/kg ≤ 0.5 The limits of other pollutants should comply with the requirements of GB2762