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河北防腐钢管保温钢管生产厂家

Land-coated water-coated steel pipe DN100 25 65 internal and external fire protection water special internal and external antiseptic spiral steel pipe
USD 13.06
Straight-buried steel steel steam insulation steel pipe municipal town heating heating glass rock cotton heat insulation pipe
USD 10.71
Prefabricated direct burial of large caliber thermal heating and high temperature transmission dn100 150 polyurethane foaming insulated steel pipe
USD 22.20
Polyurethane thermal insulation steel pipe prefabricated straight burial foam straight seamless large caliber community heating and heating pipeline
USD 12.47
Coating composite steel pipes inside and outside the spot Flange connection with inbred prefabricated direct burial pipes
USD 11.29
Processing large-caliber seamless polyurethane insulation steel pipe spiral antiseptic thickening dn300 500 carbon steel composite pipe
USD 28.97
Polyurethane insulated steel pipe thickened large caliber concentrated heating city heating-resistant straight buried seamless pipe
USD 31.33
Heating prefabricated foaming in the burial project in the community to the water jacket polyurethane insulation steel pipe heat 3005
USD 12.47
Small area renovation project heating pipeline black jacket yellow jacket prefabricated directly buried polyurethane insulated steel pipe Sichuan
USD 39.29
Manufacturer directly sells steel steel steel steam insulation steel pipes to prefabricate sliding heat heating pipes in seamless burial
USD 12.77
Steel steel steam insulation steel pipe municipal thermal engineering high-temperature high-pressure heating large-caliber burial insulation pipe
USD 16.60
Coating internal and external coating composite steel pipe epoxy resin fire water drinking water stainless steel anti-corrosion interpolation pipe
USD 21.61
Internal and external coating steel pipe large caliber DN100 300 500 interpolated flange connection coating composite pipe
USD 16.60
Steel steel steam insulation steel pipe municipal heating glass rock heat antiseptic spiral pipe processing thick wall pipe
USD 25.73
Polyurethane foam insulated steel pipe large caliber dn100 community heating prefabricated straight burial seamless pipe
USD 23.96
Small area heating, heating, pre-buried large-caliber municipal heating engineering polyurethane foaming and insulation steel pipe manufacturer
USD 25.73
Prefabricated direct burial polyurethane insulated steel pipe large caliber dn100 150 600 heating heating seamless heating
USD 28.97
Anoxy coal asphalt antiseptic steel pipe large caliber dn600 800 tricyclic tricyclic wastewater treatment spiral seamless tube
USD 33.10
Large caliber flange connection coating composite steel pipe dn200 300 drinking water fire spiral seamless pipe
USD 30.15
Manufacturer direct sales of coated steel pipe flange connection dn100 200 drinking water internal and external composite antiseptic spiral pipes
USD 23.96
Coating steel pipe manufacturers directly sell large caliber dn300 400 construction mines with fire to water spiral seamless pipes
USD 23.96
Polyurethane insulated steel pipe prefabricated large caliber dn200 300 black jacket thermal seamless insulation tube
USD 29.86
Polyurethane foam insulation steel pipe dn50 100 300 500 municipal black jacket heating seamless
USD 24.26
Customized polyurethane insulated steel pipe large caliber dn125 150 200 300 foaming thermal seamless pipe
USD 24.26
Steel steel vapor heating steel pipe thermal pipe large caliber dn300 600 800 ground buried spiral pipe
USD 23.96
Enhanced level 3pe anti-corrosion steel pipe prefabricated direct burial large caliber dn150 200 500 spiral seamless steel pipe
USD 19.25
Anoxy coal asphalt antiseptic steel pipe large caliber dn600 800 tricyclic triple water supply and drainage spiral seamless pipe
USD 17.48
Prefabricated direct burial polyurethane insulated steel pipe large caliber dn100 125 600 heating thermal seamless pipe
USD 15.42
3pe Anti-corrosion steel pipe reinforced stage large caliber dn100 150 300 600 oil gas transport seamless pipeline
USD 23.96
Large caliber dn65 75 100 150 300 fire drinking water supply and drainage seamless tube
USD 18.37
Polyurethane insulated steel pipe large caliber dn100 125 600 prefabricated direct burial heating seamless pipe
USD 15.42