As a modern enterprise that combines professional development, design, production and marketing, the city of guangzhou shiwan baby products ltd., we are constantly breaking through and innovations, introducing advanced business concepts and high-end science and technology, carefully designing a new series of items such as safe milk bottles, oral training, children's meals, intellectual toys, home safety, etc., which are adapted to the different needs of the baby at all stages of its development, while also designing a series of mother's supplies, especially with regard to the biological characteristics of motherhood**, giving mothers high quality, safe products and caring care. When a baby is sucking milk from a common bottle, it feels suffocated and stops, and the air goes straight through the milk bottle, which produces a large amount of bubbles. The baby cries for gas, milk, hiccups and abdominal pain caused by inhalation of such bubbles. Even mid-ear inflammation is caused by the flow of milk into the ear when milk is spitting. To this end, xiwan has developed new anti-fouling safe bottles designed for sub-ventilation. When the baby is used, the air enters from the bottom of the bottle, not only to balance the negative pressure in the bottle so that it can suck, but also not to create bubbles, avoiding the baby's swelling, milking, hiccups and abdominal pain. When used, ordinary glass bottles may be broken by various accidents and have safety risks. In the case of siwan, a safe glass bottle, double-storey bottle, the shell is made from imported high-intensity materials, the internal liner is not easily broken, and in the event of a particularly strong impact, the shell seals the glass fragments completely to prevent debris damage. It's relatively reassuring to hold a safe bottle of glass for the baby. The ppsu wide mouth automatic milk bottle ppsu (polybene slurry) is a transparent polymer with a slight amber colour, with high hardness, high rigidity and non-conforming physical properties, capable of withstanding the impact under continuous high temperatures (ppsu remains stable at -100°c to +160°c) without rupture. High chemical stability is also available for chemical substances such as general acids, alkalis, salt, alcohol and fatty hydrocarbons, in addition to strong polar solvents, thick** and sulphuric acids, which are extremely difficult to hydrolyse; it also resists infrared in vitro and is an excellently safe new-style baby milk bottle production material。