3 Layer HDPE Sheet/HDPE Sandwich Sheet/Dual lor HDPE Sheet ntraction Percentage:<0.4%,Water HENAN OKAYorption:<0.01%,Kind:Hard Plastic Sheet,Material:HDPE,Color:Customized China Double lor HDPE Boards/Dual lor 3 Layer HDPE Panel Material: HDPE Kind: Hard Plastic Sheet Water HENAN OKAYorption: <0.01% ntraction Percentage: <0.4% Tensile Strength: 25MPa