... impact strength Certificate: ISO 9001:2000, SGS(polypropylene bags)Technical standard: GB8946-1998, 8947-1998SPECIFICATIONSMaterial: granule PPLength ... dielectric propertiesEnvironmentally friendly for foodUSDGE SCOPE:Open woven polypropylene bags are widely used in manufacturing, construction, trade, ... carried out manually.In the life, the pp bags are well known application of its removal and ...