Dara fun irin irin-irin, awọn irin ti kii-ferrous, awọn apakan tinrin IC, awọn aṣọ, ply-meals;gilasi, awọn ohun elo amọ, agate, awọn okuta iyebiye, awọn apakan ṣiṣu tinrin ati bẹbẹ lọ;idanwo líle gẹgẹbi iyẹn lori ijinle ati trapezium ti awọn fẹlẹfẹlẹ carbonized ati pa awọn ipele lile lile.
