| Shape: | square |
| OD: | 16*16-100*100 |
| Wall thickness: | 0.5-2.5mm |
| length: | 4-13m (as customers' request) |
| Surface: | Oiled/Painted , can be dealed as customers'need |
| Material: | Q195/Q215/Q235 |
| Standard: | ASTM-A53 /BS 1387-1985/ GB/T 3091-2001 for round pipe |
| Manufacturing Technique | Weld/Seamless, ERW/SSAW/LSAW, Cold Drawn/Hot Drawn |
| Ends: | Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/ Expanding neck/ Punching holes |

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All items of our products and related tests as follow : 1.ERW black round pipe (ASTM A53,GB..)
2.Weld black square/rectangular pipe(ASTM A500,GB,...)
3.Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...)
4.Hot dip galvanized square/rectangular pipe(ASTM A500,GB...)
5.Pre-galvanized square/rectangular/round pipe,cold rolled black annealed or bright finished pipe.
6.Spiral steel pipe
7.Seamless pipe (ASTM A53,A106B,)
8.Oval pipe in galvanized and black surface
9.LTZ... special sizes pipe
10.Steel prop , steel plank,steel scaffolding pipe and accessories... steel constrctution material
11.Steel angle, Flat bar,round bar,sqaure bar,
12.H,I,U,C,T,Y,W...steel beam/channel
13.Deformed steel bar
14.Hot rolled& cold rolled steel sheet/coil in black,galvanized,color coated surface.
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