var('u,v')
p1=parametric_plot3d([cos(u),sin(u),v],(u,0,pi*2),(v,-1.5,1.5),opacity=0.4)
p2=parametric_plot3d([sin(u),v,cos(u)],(u,0,2*pi),(v,-1.5,1.5),color="red",opacity=0.5)
show(p2+p1,aspect_ratio=1,renderer='canvas',width=400)
show(p1+p2,aspect_ratio=1,renderer='canvas',width=400)