價格：免費
更新日期：2018-11-20
檔案大小：13.3 MB
目前版本：1.2
版本需求：需要 iOS 11.4 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Have you ever wondered what those 4 numbers in the red diamond mean on the back of semi-trucks, rail cars, or tanks? They're codes that tell you what kind of Hazardous Material is being transported!
With this app, now you can figure out for yourself What's in that truck!
The 4 digit codes come from the US Department of Transportation (DOT) and the Pipeline and Hazardous Materials Safety Administration (PHMSA).
支援平台：iPhone, iPad