... , and lower the physical parametererror of the electronic component.2. High purity, it is convenient to operate and better ... and alkali, In good condition, its valid period is one year (the packing should be sealed), if expired, qualified product ... quotations. ( function(){ var aBigImageSrc = [ 'http://i00.i.aliimg.com/photo/v4/370172200_1/Zinc_Oxide_98_CAS_No_1314_13.jpg' , 'http://i00.i.aliimg ...