The characteristic of polyethylene PE is that it is insoluble in water and has very little water absorption. Even for some chemical solvents, such as toluene, acetic acid, etc., it only slightly dissolves at a temperature above 70°C. The plastic folding box made of poly…

Anyone who has been in touch with plastic pallets will find that most of the common plastic pallets on the market are blue, and other colors are rarely seen. Why?