Shandong Jiurunfa Chemical Technology Co., Ltd. of item 91222791 profile - China reliable ≥99.99% Purity Dimethyl Ether Heat Of Vaporization 111.64 Cal/g -24.8°C Refractive Index 1.325 for Industrial Applications supplier and ≥99.99% Purity Dimethyl Ether Heat Of Vaporization 111.64 Cal/g -24.8°C Refractive Index 1.325 for Industrial Applications company