Certificate Directory
Liang Chew Hardware Pte Ltd
Product category:
STL Test Certificate
COC Number:
TC-J0157
Issue Number:
04
Product:
Air Admittance Valve
Brand / model:
Norika / AAVN
Status of COC / Date:
Current / 31-Mar-2028
Date of issue:
01-Apr-2020
Date of revision:
01-Apr-2026
Date of expiry:
31-Mar-2028