... Polypropylene is also said PP, it includes many grades: Film grade, pipe grade, injection grade, fiber grade, yarn grade, coating grade, powder grade, homopolymer, biaxial orientation ... Transparency is also polyethylene, hardened than polyethylene. Recycled PP pellets are very clean and top quality from excellent ... garden equipment such as Cut the grass machine . PP Pipe Grade/Copolymer/Coating ...