VIZA holds all major industry certificates, including ISO 9001:2000, PED/CE, API 600, API 6D etc. All subsidiary companies of viza group are audited and approved by world-renown companies like TUV, DNV and Lloyd's.
Product certificates of special application and high performance valves are available and to be continuously expanded. Such as: Fire safe certificate for soft seated ball valves, fugitive emission for gate and globe valves, and certificate for long life cycle for concentric butterfly valves and etc.

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