round welded pipe size:12.7~152.4mm thickness:0.5~5.0mm finish:black , galvanized , powder

shape steel pipe shape: round , square,drum intersection ,elliptic intersection ,flat elliptic intersection , semi elliptic intersecton pipe ,etc

 

Surface treatment

1.black without surface treatment

2.white without surface treatment

3.hot dipped galvanized

4.zinc-plate

5.made with pre-galvanized steel plate

6.other surface treatment according to your demand