程序需要的身份，正式图章和III级无损检测工程师签名以及有效日期。
Procedures require the identity, formal stamp and signature of level III NDE engineer as well as the date of validity.
职工总人数1500余人，其中工程师，高级工程师40人；有证合格焊工350人；专职无损检测人员50人。
It has totally more than 1,500 employees, including 40 engineers and senior engineers, 350 qualified welders with certificates, and 50 full-time non-destructive testing staff members.
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