标题（Title） 一般不超过80个字符
Envelopes All Colors and Sizes , Same Day Shipping, Manufacture Direct Pricing. | Envelopemall.com
（98 个字符）
关键词（KeyWords）一般不超过100个字符
envelope, envelopes, Invitation envelopes, announcement envelopes, business envelopes, square envelopes, greeting card envelopes, window envelopes, large envelopes, catalog envelopes, booklet envelopes, mini envelopes, coin envelopes, card sleeve envelopes, translucent envelopes, colored envelopes, policy envelopes, baronial envelopes, social envelopes, Translucent Paper, Metallic paper, Mill brand Papers
（410 个字符）
描述（Description）一般不超过200个字符
Shop a Large Selection of Envelopes - Specialties Include Announcement Envelopes, Invitation Envelopes and Business Envelopes .
（130 个字符）
