?缓凝水泥
... 纯缓凝水泥 neat retarded cement 缓凝水泥 delayed setting cement; retarded cement; slow cement; slow setting cement; slow-setting cement 缓凝水泥浆 extended slurry ...
慢凝水泥 ; 缓结水泥
缓结水泥
缓凝水泥
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