flat elliptic intersection pipe

1flat elliptic intersection pipe
2.a*b:pt9.5*17,12*25,14*37,15*30,16*32,20*40,20*60,25*50,~pt60* 115thickness(mm)0.8~3.0
flat elliptic intersection pipe
a*b:pt9.5*17,12*25,14*37,15*30,16*32,20*40,20*60,25*50,~pt60*115
thickness(mm)0.8~3.0
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
ISO9001
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