BẠC ĐẠN-VÒNG BI-CHÀ-TRÒN-ĐŨA-3 MIẾNG-51122-51103-51104-51105-51106-51107-51108-51109-51110-51111-51112-51113-51114-51115-51116-51117-51118-51119-51120-51121-51122-51123-51124-51125-51126-51127-51128-51129-51130-PBC