Many excellent agents and suppliers are willing to work for Dongguan Jiuduo Plastic Products Co., Limited. Jiuduo is committed to becoming a first-class enterprise with industry influence. In the future, it will be our pleasure to contribute to a better life and harmonious society. Jiuduo's wallet phone cover is widely used in various industries and fields. Various in styles, Jiuduo's flip phone cover can meet the needs of different customers. The product is endowed with anti-electromagnetic interference function. The wallet phone cover thus produced has features like wallet phone case. The production is carried out strictly according to national standards, during which we carry out strict cost control. flip phone cover is a high-tech product with long service life, guaranteed quality, and reasonable price. we provides more favorable prices for large orders. Please contact us for details.
What kind of mask does the doctor bring? Try a gas mask!Respiratory organ protection equipment that only protects respiratory organs from harmful substances.It is mainly used in operating environments containing low concentrations of harmful gases and vapours.Only the absorbent or suction agent is installed in the filter box.Some filter boxes are also equipped with filter layers,Anti-aerosol at the same time.Some military gas masks,Mainly made of active carbon cloth,Or use water-resistant oil-resistant fabric as the outer layer,The glass fiber filter material is the inner layer,Polyurethane foam soaked in activated carbon is the bottom layer,Temporary protection can be provided in the event of a gas attack.The gas mask is a bionic work, inspired by the wild boar on the battlefield after another war.Chemical weapons were used at the time,But the wild boar was not found after the war,Therefore, a gas mask and a gas mask were created to imitate the shape of the boar's nose.Anti-virus masks can be d
When raising fish, what is the role of air pump, anti-gas lift, filter and filter? What do you need in a fish tank to keep a good fish? As the name implies, the Air Pump is a device to inflate into the bathtub.Reverse air lift is a biochemical filter (fish tank filter) used to filter the water quality environment of the aquarium ).Its main feature is to cultivate enough nitrobacteria to consume harmful substances (ammonia and nitrite) in the pond ),And produce non-toxic nitric acid,Nitric acid is the best nitrogen fertilizer for algae,It can be absorbed and assimilated by algae.The principle of anti-gas lift is the convection between water and gas,Provides a hotbed for the growth of nitrobacteria.The filter is a device for water purification and oxygen replenishment in fish farming appliances,The purpose is to remove dirt such as feces in the water,Keep the water clear, with sufficient oxygen, no harmful substances and no pollution,Suitable for the growth of fish.There is a good filtration device in the
