离子交换树脂和活性炭，用于电力、半导体和制药行业的除盐、脱盐、吸附过滤和超纯水制备。
Strong-acid/weak-acid cation and strong-base/weak-base anion resins, plus mixed-bed resins for ultrapure water
Coal-based, coconut-shell and wood-based granular, powdered and pellet activated carbon for adsorption filtration
