SELECT tt.`duler` FROM (
    SELECT SUM(t.`type`) AS `count`, t.`duler` FROM ( # duler 是经销商
        SELECT q.* FROM quotation  q
        LEFT JOIN product p 
        ON q.`type` = q.`type` # type 是型号
        WHERE q.`type` LIKE '飞利浦%'
    ) t
    GROUP BY t.`duler`
) tt
WHERE tt.`count` = 6