UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Yingozi
Galvanised Steel Pipe: Steel Tube Pickled, Fluxed and Dipped in Molten Zinc
Galvanised pipe is steel tube with a coat of zinc. Pickle the tube in acid to take off the mill scale, rinse it, coat it with zinc ammonium chloride flux and let it dry, then dip it in molten zinc until it is as hot as the bath, lift it out and quench it. Dipping iron in zinc goes back to 1742; Sorel patented the acid and flux in 1836.
The picture: our diagram of the four tanks.
Osezingeni eliphezulu
Half a day
Okuqukethwe okuyingozi
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NgenaLe blueprint yenza
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CC0 Isizinda Somphakathi
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