Certificate Directory
Liang Chew Hardware Pte Ltd
Product category:
STL Test Certificate
COC Number:
TC-J0172
Issue Number:
04
Product:
Ductile Iron Heavy Duty Circular Manhole Cover & Frame
Brand / model:
Norika / DIMC
Status of COC / Date:
Current / 17-Jun-2026
Date of issue:
18-Jun-2020
Date of revision:
25-Mar-2025
Date of expiry:
17-Jun-2026