The purpose is mainly used for the production of coal mine scraper conveyor and machine not the middle of the back cover groove M15 Width: 150 Thickness: 9 fixed double length: 1210 Material: M510/M540/M565 D15 tank to help steel M15, M18, M22 E19 slot for steel specific model parameters are as follows: D15 width: 150 thickness: 8 fixed double length: n × 1210 M15 width: 150 thickness: 9 fixed double length: n × 1210 M18 width: 180 Thickness: 10 fixed double length Length: n × 1510 E19 width: 190 Thickness: 14 times The length: n × 1510 M22 Width: 222 Thickness: 20 fixed double length: n × 1210 standard, the standard of the People's Republic of China GB/T3414 coal machine hot-rolled Shaped steel M18 tank steel suppliers, scraper groove to help professional supplier of steel, central trough? Hao Bo mining products: D15, M15, M18, E19, M22 groove for steel, 5 #, 6.5 # steel scraper, inclined leg channel of 10 #, 7 # 8 # 9 # π steel, the Φ18 Φ20Φ22 steel bolt, 9 # 11 # 12 # miners, steel, welcome new and old customers to inquire, sincere cooperation and seek common development!