Nkọwa dị mkpirikpi:

Ntupu panel

Ihe:Igwe anaghị agba nchara carbon, waya igwe anaghị agba nchara

Akpa na njirimara:
Hot tinye galvanizing mgbe ịkpa ákwà
Ịkpa akwa na-ekpo ọkụ tinye galvanized ígwè waya
Eletrik galvanizing mgbe ịcha akwa
Ịkpa akwa na igwe galvanized ígwè waya
Ntupu welded waya mkpuchi mkpuchi PVC