style:particle board FC emission standard : E1 E2 ... into it .So convenient for your life . board-sawing→edge-banding →punching→board-washing→packaging the following colorful ... : >=4 degree3break obstructionsample is put into the roaster for 24 hoursseen by eyes , no flaw: >=4 degree4vapour ... obstructionsample is covered by something colorful for 16 hours:coffee , tea, milk,soy sauce, ...