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Select the protection level and look at the dust in the environment: If there is only harmful gas, the general tank selection can meet the requirements; if it contains dust, then the tank sho …
How long is the life cycle of activated carbon masks I don't know if you have such a question. How long is the life cycle of the most common activated carbon mask in life? Today Zhongbao Prot …
What are the standards of Chinese masks, mask manufacturers tell you GB2626-2006 Respiratory Protective Products-Self-priming Filtering Anti-particulate Respirator This standard specifies the …
Classification by shape Masks are divided into three types: flat, foldable, and cup-shaped. The flat mask is easy to carry, but has poor adhesion; the folding mask is easy to carry; the cup-s …
Q: What is the current production capacity of masks in China? Can it meet the needs of national epidemic prevention and control? Responsible comrades of the relevant departments of the Minist …
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