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。
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Available in moderate sulfate - resistant ( msr ) and high sulfate - resistant ( hsr ) grades . this product is intended for use under conditions of moderate high temperatures and pressures 有中抗硫酸盐型（ msr ）和高硫酸盐型（ hsr ）两类，适合于中温、中压的井下条件时使用。
