Methods for testing the permeability of plastic bottle containersAt present, the widely used container permeability test method is developed on the basis of thin film permeability test weighing method, using the principle of weighing test, the relevant test standards are GB/T 6981-1986, GB/T 6982-19

The raw material problem facing plastic bottles?To this day, we have a lot of plastic bottle companies who are completely dependent on the foreign trade market, which is not desirable. As an emerging economy, China's high-speed development, the market demand for plastic bottles is also increasing ye

If the green beans in accordance with the usual placement in the plastic bag inside may be raw insects or will be affected by the tide, in the face of this situation, many people will choose to put green beans in the plastic bottle inside, then this put will be safe?According to research experts, mo