A core drill stand prevents the operator from ... “Silica dust inhalation is a long-term concrete drilling hazard,” Minnich acknowledges. “OSHA and manufacturers have addressed this issue ...
BUILDING TECHNOLOGIES that will surprise you Subscribe to my channel to get to know all news! ► For copyright matters please contact us at: [email protected] TIGER STONE The Dutch company Vanku ...
Barbante also directs the Polar Science Institute at Italy's National Research Council.The same team previously drilled a core about 800,000 years old. The latest drilling went about 1.7 miles ...