求助翻译：英文版实习证明

小弟学的专业是机械制造，现在国内一个汽车制造厂进行实习，学校方面要求出具英文版实习证明，但本人水平有限，恐格式，用词不妥，特求高人帮忙！！
具体内容：
xx
（姓名，出生日期，出生地，）于xxx日期至xxx日期在我厂生产部和质量保证部分别进行了为期4个周，总共八个周的.实习，期间请事假两天。
签字，盖章
下面是我自己拟的一份，请高人指点，或者给规范格式。感激不尽！！


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:____________