亚洲国产精品99久久久久久,日韩亚洲综合一区二区三区,无码 人妻 在线 视频,双乳被一左一右吃着的,中文字幕人妻色偷偷久久

Quality Standard：

Properties：
The product is a white powdery crystal. It can deliquesce easily and dissolve easily in water. It can dissolve in alcohol slightly. It can be resolved when it is affected by the heat or it is in hot water. It can corrode glass. It’s poisonous.
Application：
The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
Storage：
Moisture-proof and sealed preservation is needed.
Transport：
It should be treated as inorganic poisonous goods.
Packing：
The product is packed in a 10kg or 20kg polythene plastic bag. Also pack it on consumer requests.