THE 5-SECOND TRICK FOR แผ่นพื้นเหล็ก

Ignoring this warning has its implications — you can fail an inspection. The engineer also styles the attachment designs, by taking into consideration aspects for example uplift ability, diaphragm shear ability as well as thickness supported by users beneath it.ลักษณะงานที่เหมาะสม งานโครงสร�