An order form is included in the mailing.

随信寄上订单一份。

《牛津词典》

The goods will be dispatched on receipt of an order form.

订单一到即发货。

《牛津词典》

An order form is enclosed. Fill it out and attach your check.

随函附上订单一张，翚请填妥后并附来支票为荷。

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ERICFile: an information bulletin published twice each year that contained news of the ERIC system, information about services and products, and an order form for publications.

UNESCO: Education Resources Information Center (ERIC), USA

Into the chaos, the fumbling in the dark, an order is imposed as people form circles around performers, a troupe of acrobats, jugglers and escape artists, a comedian, a group of musicians, a story-teller... this is trial by public jury: if the performance falls flat, the tricks fail to amuse or the stories to amaze, the crowds move on.

BBC: Djemaa el Fna, the beating heart of Marrakesh

When brands formulate appropriate strategies with the latter in-mind, we often see that they are more effective in engaging Hispanics on both an authentic and emotionally compelling level in order to help form more lasting consumer relationships.

FORBES: America's Corporations Can No Longer Ignore Hispanic Marketing Like Mitt Romney Did