"zinc plated steel"

ท่อเหล็กกัลวาไนซ์ไร้ตะเข็บทรงสี่เหลี่ยมชุบสังกะสีแบบจุ่มร้อน 25 X 25 นิ้ว หนา 16 เกจ

Seamless/Welded Square Galvanized Steel Pipe Tube Hot Dipped 25 X 25 Inch 16 Gauge Product Specification Hot-dip galvanized square tube is a square tube made by welding a steel plate or steel strip after crimping. On this basis, the square pipe is placed in the hot-dip galvanizing bath and then formed after a series of chemical reactions. While the amount of cold galvanization is only 10-50g/㎡, which has poor corrosion-resistance performance and is not suitable for extreme