钢通规格表500X300X8.0--12.0mm450X250X6.0--12.0mm400X300X6.0--12.0mm400X200X6.0--12.0mm350X250X6.0--12.0mm350X150X6.0--12.0mm300X200X6.0--12.0mm300X150X6.0--12.0mm300X100X4.0--10.0mm280X180X4.0--10.0mm250X150X4.0--10.0mm250X100X4.0--10.0mm200X150X4.0--10.0mm200X100X4.0--10.0mm200X95X4.0--10.0mm160X80X4.0--10.0mm150X100X3.0--10.0mm150X90X3.0--10.0mm150X75X3.0--8.0mm140X80X3.0--10.0mm120X100X3.0--10.0mm