Removing etree.HTMLParser
gives you texts:
>>> import urllib2
>>> from lxml import etree
>>>
>>> rss = urllib2.urlopen("http://dizzy-v.co.kr/test/test.xml").read()
>>> root = etree.fromstring(rss) # <----
>>> for product in root.iter('product'):
... for element in product.iter():
... print element.text
...
google
http://www.google.com
sushi