Jennmar Corporation
Pittsburgh, Pennsylvania Jennmar Corporation designs longwall support systems. Our product line includes mine ties, belt hangers, channels, beams, roof mats, material & surface control and ground control equipment. We provide a broad variety of advanced engineering services for mining and tunneling. More...
www.jennmar.com

Chancon Company Limited.
Thailand Chancon Company Limited manufactures construction material. We focus on engineering steel works & technical solutions to general contractors, and the construction industry. Our products include tension rods, sag rods, anchor bolts, J-bolts, U-bolts, rock bolts, machine bolts, ribbed plates, slope pl More...
www.chancon.co.th