hollow section

9)Usage:widely used in many constructions

8)Round, square ,and rectangle shape are all offered

7)ERW steel tube & pipe are our mean exporting production

6)Black Annealed Steel or Bright

5)Min thickness can be 0.4 mm or less

4)Material of window or door frame

3)Z 28*28*0.55 mm         38*38*0.55 mm

2)T 28*28*0.55 mm         38*38*0.55 mm

1)L 28*28*0.55 mm         38*38*0.55 mm

hollow section:

hollow section:
1)Welded,copper coated,rectangular
2)Material of window or door frame
3)Min thickness can be 0.4mm or less