Mainly in the Pearl River Delta region.
I'll give you the link to the school.
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There is a phone on it. You can consult if you have any questions.
Address: No.0/068, Nigang West Road, Shenzhen.
Postal code: 5 18029
Tel: 0755-25859298 Teacher Lin
Fax: 0755-25859260 Teacher Zhu