... , the obturator foramen is much more well-proportioned and detailed, and its physical property is much better, too. Because ... weather fastness ,acidproof alkali, sound absorption, non-pollution and so on.UsePackaging, hardware industry,real estate industry, ... electronics industry, shoemaking, safeguarding,vehicles, shipping, bags industry and so on.Test ItemsROHS,SGS,UL,M1Features:1.excellent ...