Some standard dimensions of the STR B0.2B D=T/3,H0=1.5-2.0T, 宝￥ B=0.1T,ho=0.25T, S=2-3D,C=DD=T/3, H0=1.5-2.0T, B=0.1T, h0=0.25T, S=2-3D, C=D Some standard dimensions of the STR