Detailed Product Description 1.material:laminated from the high quality raw material OPP+VMPET+CPP 2.dry laminating in making. 3,any normal specs we can make according to customers requirements 4.type:three sides sealed,back sealed,four corner sealed,side gusset and mid sealed,bottom gusset with zipper. 5.vacuum sealed,good packaging barrier. 6.low oxygen transmission rate to avoid oxidation or ...