Why aluminum-plastic composite board in the cutting of the inner aluminum and polyethylene plastic, should retain not less than 0.3mm thick polyethylene plastic?
To prevent the processing and dry hanging construction, aluminum-plastic plate when the outer corner of the fold burst.
But also to ensure that the corner part of a certain strength and toughness,
But in the construction of specific operations, in order to prevent the slot when scratching the surface layer of aluminum
First want to say, this value or that the thickness is not expressly defined, is not easy to control.
To prevent bending when the fracture and longer life.
