1.Product name:Square steel tube and pipe 2.OD:15*15 ... :755-818USD/T 5.MOQ:20T TypeSquare steel tube and pipeSpecification15*15-800*800mmWall thickness0.7-30mmLength4- ... 60-120g/m2 ;Hot galvanized , cold galvanized and off galvanized:200-400g/m2PackingStandard export packing or ... construction, pipe of industrial, water pipe, plastic-steel doors and windows, fence equipment, telecommunication tubes as well ...