求助翻譯：英文版實習證明

小弟學的專業是機械制造，現在國內一個汽車制造廠進行實習，學校方面要求出具英文版實習證明，但本人水平有限，恐格式，用詞不妥，特求高人幫忙！！
具體內容：
xx
（姓名，出生日期，出生地，）于xxx日期至xxx日期在我廠生產部和質量保證部分別進行了為期4個周，總共八個周的實習，期間請事假兩天。
簽字，蓋章
下面是我自己擬的一份，請高人指點，或者給規范格式。感激不盡！！


CERTIFICATE

TO WHOM IT MAY CONCERN: This is to certify that Mr XXX who was born in October 7th 1985 in Shandong province, China, has successfully completed and  passedthe eight-week Program of internship in our company (Shandong XXXX Automobile Manufacture Co.,Ltd) during  hisstudy  formachine building at the following departments : Quality Assurance from December 31th 2008 to January  27th2009 Production from  January 28th2009 to February 25th 2009 with 2 days off because of private business.
HR (Human Resources Department)  Manager:____________

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