Tube Square ຢູ່ທີ່ສູນຄິດໄລ່ສູນ

A (Exterior Side) : mm
B (Interior Side) : mm
Inertia : mm4
Modulus : mm3
Radius : mm
Area : mm2
Tube Square ຢູ່ທີ່ສູນຄິດໄລ່ສູນ