a ti kọja nipasẹ ayewo ti Australia New Zealand Standard Fabricated Structural Steelworks Welding Ilana Sipesifikesonu WPS PQR Ayewo laisiyonu ati ki o jẹmọ awọn iwe-ẹri dimu.
Akoko ifiweranṣẹ: Oṣu Keje-23-2021
AS/NZS 1554 Ilu Ọstrelia Ilu Niu silandii Ayẹwo Iṣe Alurinmorin Didara Iṣe Awọn Irinṣẹ ati Dimu Ijẹẹri WPS PQR
Akoko ifiweranṣẹ: Oṣu Keje-23-2021