Vuba aha, isosiyete yacu yakiriye abakiriya benshi b’abanyamahanga, barimo abakiriya ba Koreya, abakiriya b’Abahinde, abakiriya ba Dubai, n’abakiriya ba Bahrein.

Baje mu kigo kugira ngo bagenzure aho, cyane cyane guhana no kuvugana n’ibicuruzwa biherutse. Kugeza ubu, ibyo dukomeje gukora birimo imiyoboro y'ibyumaASTM A335 P5, P9, p11, P22. Umuyoboro w'icyumaASTM A106 GrB48.3 * 5.08 nibindi, kuri ubu hari ibicuruzwa byoherezwa nibicuruzwa bikozwe, bitunganywa kandi bigenzurwa.

Vuba aha, ingano yububiko ni nini kandi ibarura rirakomeye. Niba ufite icyifuzo gisaba, nyamuneka nyandikira vuba bishoboka, bitabaye ibyo ushobora kuba ufite amafaranga Ariko ingano ya pipe ikenewe cyane na moderi ntishobora kugurwa.