... :2000 4.1987s factory 5.SGS(RoHS) Shijiazhuang Sunpower Technology Co.,Ltd specilized manufacturer Zinc oxide from 1987s.Product Name: 99 ... indirect-method ZnO is produced by an oxidation method and a calcination method. It is white powder stable at ... radial tires, diagonal tires, automobile capsules, hoses, tape, gloves and other rubber products; paint, medicine, cables, electronics, coinage, enamel ...