In the process of producing health care products plastic bottles, in order to make the wall thickness of the bottle uniform, the symmetry of the shape should be injected. During the blow molding, the part where the parison first contacts, always tends to harden first, so the The wall thickness of th
READ MOREHealth care products are extremely vulnerable to gas, temperature, environmental humidity, light source, microbial strains and other elements in the whole storage process because of various functional components, which cause various complex changes in physics and organic chemistry. This endangers th
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