1, It is sheaf packing, but not the debris or particles packed space bags. 2, White cast is the color of fracture part and it includes blue, white and slant blue. The white cast should be transparent or white.
Polymethyl methacrylate Acrylic is also known as Acrylic and it is a combination of chemicals such as acrylic acid and methacrylic acid. It is often said that acrylic plate is polymethyl methacrylate (PMMA) plate which is combined by methyl methacrylate monomer.
