国家建材局于２０００年２月２４日以建材行管发［２０００］４１号文向各省市建材主管部分发出通知 ,公布１９９９年度水泥包装袋生产定点企业名单。通知指出 :１９９９年水泥包装袋生产定点企业的初审工作（现场评审、封样及质量检测）已由定点办公室组织完成 ,经定点办公室? On February 24, 2000, the State Administration of Building Materials issued a circular [2000] No.41 to the Building Materials Administration of all provinces and municipalities to issue a notice to the departments of building materials of all provinces and municipalities to announce the list of fixed-point production enterprises for cement bags in 1999. The notice pointed out that: In 1999, the preliminary examination work (on-site review, sample sealing and quality inspection) of fixed-point cement packaging production companies was completed by the designated office.