This certifies that the structural castings, dimension layouts, alloy compounds, and chemical purities of Delta drainage assemblies are strictly manufactured to meet international standards. This document verifies compliance as detailed under the registered standard specification code below.
Mechanical load testing, grating aperture opening compliance, flow-rate discharge capacity, and anti-slip surface profiling for floor gullies and manhole top covers with load ratings Class A15 to D400.
This digital credential corresponds directly with the hard-copy certificate issued on dispatch. To request certified hard copies, email us at deltainfofficial@gmail.com with your reference serial.