Sir James Doille, seorang Skotlandia di Universitas Oxford, menemukan cangkir isolasi vakum pada tahun 1893. Dia meletakkan satu botol di botol lain dan kemudian menariknya
At present, the world economy is changing, and the domestic industrial structure is also in the stage of continuous upgrading. In the current process of
Newborn's immune system is not perfect, anti-bacterial ability is poor, very easy to be infected, and feeding tableware often residual milk, milk liquid is very