不退换规定 Non-return policy

概不退换 Instruction Not Include

俗不退换 no refundable

演出票售出后概不退换 No refunds or exchange if the tickets are sold

特价不退换 nottta

不可退换 Can not be returned

货物出门概不退换 caveat emptor

不退不换 No rebate is not-for ; Rebate does not change ; Does not draw back trades ; No withdrawal is not-for

不良品退换货及索赔 Exchange and claim unqualified parts