THE แผ่นพื้นเหล็ก DIARIES

The secondary things variety stiffeners for the web made by the fluted deck. As for usual beams, the deck (Website of horizontal beam) should be attached to your perimeter users (flange of horizontal beam) to be sure transfer of your shear forces.ทนทานเพราะเคลือบป้องกันสนิม ทำให้อา