Determination of chloride in cathode carbonate 阴极碳硫盐中氯根的测定
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Available in moderate sulfate - resistant ( msr ) and high sulfate - resistant ( hsr ) grades . this product is intended for use as a basic well cement 有中抗硫酸盐型( msr )和高抗硫盐盐( hsr )两类,是一种基本油井水泥。