plastic padlock security seals

plastic padlock security seals
plastic padlock security seals

2014年3月28日星期五

Nylon cable ties Usage



Nylon cable ties winter break how to do , we have to explore . Winter, we all know this thing to the plastic becomes very brittle after winter , because the plastic is the main component of macromolecular aggregates of macromolecules characterized by slow movement of low temperature , high temperature during exercise quickly. In the winter , the molecular motion is slow, when the plastic by external , object deformation , due to the slow molecular motion , force is not easy to pass away ( sharing internal stress ) or consumed ( molecular chain friction ) , so prone to stress concentration, when the stress to a certain extent , macromolecules on the broken , causing cracks, cracks in the stress concentration would lead spread , cut off the plastic .
Approach: Under normal circumstances inject a small amount of moisture in the bag can reduce breakage

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