About us2021/01/05BJT is the leading company of protective packaging machine & material with famous brand like Locked Air and Umailer. Providing air cushion machine, cushioning film, and customized p...
Quality Control2019/07/19One: Incoming inspection:1:Dimension scare(1):With drill thousand meter swatch to detect film thickness(2):Straight ruler detection film size2. By detecting the pull value, the film pull strength, hea...
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