... .5mm,5.0mm as requestedFeatures high-temperature sterilization in microwave ovens, and have undergone UV sterilization. HygienicQualityPassed CIQ,with ... feel free to contact us ! About CompanyYiyang Hexiang Co., Ltd ,located in Yiyang ,Hunan ,China , where is rich ... fresh bamboo ,which have passed high-temperature sterilization in microwave ovens, and have undergone UV sterilization. Hygienic .We have ...