хуурай тээрэмдэх хөнгөн цагаан нунтаг үйлдвэрлэх үйл явц
percage матриц хөнгөн цагааны. Lingula brachiopod Lingula is a genus of brachiopods within the class Lingulata Lingula or forms very close in appearance have existed possibly since the Cambrian Like its relatives it has two unadorned organophosphatic valves and a long fleshy stalk Үнэ болон үнэгүй дээж авах