... , production and installation of wind, sand, snow and dust control systems with the steel porous panel they produce. GreenTech has established close ... :2008, ISO14001:2004, ISO18001:2001. Since the factory came into output in July, 2011, GreenTech has completed nearly 20 projects in ... material size: thickness 0.8-6.5mm Width 100-600mm Output material: steel plate, recoiled steel strip 4. Cut to length ...