Txheej tiv thaiv xeb

ISO 12944-1-2017

ISO 12944-2-2017

ISO 12944-3-2017

ISO 12944-4-2017

ISO 12944-5-2018

ISO 12944-6-2018

ISO 12944-7-2017

ISO 12944-8-2017

ISO 12944-9-2018

ISO 1461-2022: Cov txheej txheem galvanized kub rau cov hlau thiab cov khoom siv hlau ua tiav Cov Lus Qhia thiab cov txheej txheem sim

ISO 21809-1-2018

ISO 21809-2-2014

ISO 21809-4-2009

ISO 21809-5-2017

AWWA C213-2022 COV TXHEEJ TXHEEM EPOXY FUSION-BONDED THIAB LININGS RAU COV YEEB DEJ HLAU THIAB COV FITTINGS

JIS G 3442-2023: Cov kav hlau Galvanized rau cov kav dej ib txwm muaj

DIN 30670-1-2024

DIN 30670-2-2024

BS EN 10240-1998

BS EN 10339-2007

GB/T 23257-2017

GOST 9.402-2006

CSA-Z245.20-2022: Cov txheej txheem sab nraud uas siv rau cov yeeb nkab hlau

AS 3862-2017 Sab nraud fusion-bonded epoxy txheej rau cov kav dej hlau

AS/NZS 2312.2-2014