本帖最后由 nan1 于 2013-4-16 10:43 编辑 . p. T% H' X/ x& s. L: Y; n
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From Apr 8 2013, the certificates renewal policy of all compulsory trades in Ontario has changed. check link below. 3 N& ~* g4 J0 u7 V3 fhttp://www.collegeoftrades.ca/