H2(KK-E)型/角枠付き 加工図面国土交通省型H2(KK-E)型 角枠付きH2(KK-E)型900x600H2(KK-E)型900x900(S15+B75)H2(KK-E)型900x900(S45+B45)H2(KK-E)型900x1000H2(KK-E)型900x1200H2(KK-E)型900x1300H2(KK-E)型900x1500