... 500kv), telecommunication towers, monopoles, bionic towers, camouflaged mono poles, steel pipes, grating, cable and so on. We also supply ... all kinds of steel profile products, as per customers' requirements.The company provides ... : ASTM A36; ASTM A5722. Hot-dip galvanization: ASTM A1233. Structure: self-supporting angular towers4. Connection: bolted&welded5. Life time: ...