Wabtec Acquisitions Expand Capabilities of its Transit Business
Wabtec Corporation (NYSE: WAB) announced today a strategic investment in its Transit Business with the acquisitions of Fanox ...
Gemological Institute of America20 天
An Introduction to Gem Treatments
1. Durability factors – Many impregnations are often “skin deep” and due to the melting point of plastic and wax, can be susceptible to heat damage. Plastic impregnations are considered durable in gem ...