![1000000638.jpg](https://cdn.steemitimages.com/DQmdPS4ZtV71yWAS1aAApcmmWNY7oiuh4Zd2HZ6qqV3X7Qm/1000000638.j to for the necessary production of the packing that should be a very very important for the afford the necessary material for the which container made be much show contain basic properties which can be worried into four groups mechanical properly physical properties chemical properties and
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