About Keystone Marble & Granite Keystone Marble and Granite is a reliable and trusted source of premium countertops in Horsham, Pennsylvania. The company has built a stellar reputation for its ...

A new California law aims to protect workers from silicosis, an incurable lung disease that has killed 29 people in the state and sickened hundreds. Experts say it isn’t enough.

Engineered stone has remade the American kitchen, and may now be remaking the law. Makers of quartz countertops are pushing ...

A surge in quartz countertop fabrication has triggered a growing epidemic of silicosis — an incurable lung disease — among ...

Workers are filing lawsuits against the countertop industry as cases of silicosis, a deadly lung disease, rise.

Abstract: In the production process, spare parts are assembled to become products. To improve product quality and reduce cost, it is required to determine whether to detect the quality of spare parts, ...