To improve properties, other alloying agent can be added on request. Here no minimum limit for Alt.

为改善钢的性能， 根据需要可添加其他合金元素， 此时Alt的下限不要求。

youdao

There is no minimum limit on the price you paid for the goods, but generally you need to register your claim within 120 days of the date you bought the goods or placed the deposit on the card.

BBC: When stores go bust: How to get your money or goods back

Although the ADA is deferential to national governments when it comes to the details of implementing their antidumping laws, it does articulate certain minimum standards intended to limit the scope for abuse, such as reaching affirmative findings of dumping when no dumping has occurred or manufacturing punitively high antidumping duty rates, for example.

FORBES: Protectionist Antidumping Regime is a Pox on America's Glass House