... 2.Environment-protective and pollution-free 3.Huminityproof, anti-erosion PP Plastic Hollow Board is a new packing ... -protective and pollution-free3.Huminityproof, anti-erosion4.Low density, anti-stretchi 5.Low density, anti-stretching, high hardness6.The surface ... board (including wire/cable wrapping, class/steel board wrapping, cushion, rack, clapboard, soleplate, separator, etc)4.Protective board, ...