chenglu group co., ltd is a large scale joint venture enterprise, specialized on producing most of the stationery products, writing instryment is its major.what's more, it's also one exporting enterprises, more than 90%of the products are for customers have been extended to over 200 countries all over the world.Otherwise, it has one very efficient and cooperative R&D department committing to design full ranges of new and latest writing instruments, including LED lighting pens, Metal pens, ball point pens, highlighters, markers, mechanical pencils and various package as well.chenglu group co., ltd is certified enterprise of ISO 9001-2000 and ISO 14001-2004 by SGS authorization.And it has been granted as China Brand Nameby Chinese Ministry of Commerce, and also praised asPen Master, and Main Support&Development Enterprise.