After the completion of the third party information system test, business units should complete the information system security level protection filing and evaluation of rectification work.
信息系统第三方测试完成后，业务单位应完成信息系统安全等级保护备案和测评整改工作。
2
The raw product from hydrogenation is continuously rectified. 1,4-Butanediol from continuous rectification is subject to PBT polymerization test, and is found to be up to the polymerization grade.