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Precautions for precision mold processing
1. Shrinkage rate of precision injection molding: During the molding process of plastic varieties thermoplastics, due to the volume change caused by crystallization, the internal stress is strong, the residual stress frozen in the plastic part is large, and the molecular orientation is strong. There...
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Factory test of plastic pump head
Every pump head produced goes through a multi-step inspection. 1. After the plastic pump head is proofed, the sample must first be confirmed to the customer to see if the plastic pump head meets the customer's requirements. 2. Cosmetic pump heads produced in large quantities must first be inspected ...
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General knowledge analysis and explanation about lotion pump
Lotion pumps are related products for beauty salons, medicine, washing packaging, and cosmetic packaging. A. The dispenser is divided into two types: tie type and screw type. In terms of function, it is divided into spray, foundation cream, lotion pump, aerosol valve, vacuum bottle B. The size of th...
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Four misunderstandings in the selection of moisturizing spray
The air conditioner in the office is madly swallowing the moisture in our skin, and almost every female colleague puts a bottle of spray on the table at the same time. With just one click, the fine mist-like water droplets instantly make you feel as clean as water, but after a few minutes, your face...
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Performance characteristics of hand sanitizer pump head
The composition of the most typical lotion pump of cosmetic pump head: press head, braces, cylinder head, cylinder, piston rod, piston, piston head, spring, single valve, gasket, and hose. But not all lotion pumps must contain these parts, and some parts can be combined or replaced depending on spec...
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