... Name:Aluminium casting feed frameType:504A-BV1.0/1.2casting feed frame without "P"504 is the code for wire ... feed frame we have 21,401,402,404,501,502,504 ... is the type of roll ,we have V,U,K,Three types,"V"fit to steel wire ,"U"fit ... to fluxcore wire an "K"fit to aluminium wire0.8/1.0 is the trough dimension of roll ... 8,0.8/0.9,0.8/1.0,1.0/1.2,1.2/1.6,1.6/2.0,2.0/2. ...