Production Process
Step 01
Steel Coil Inspection
Step 02
Spiral Mill
Step 03
SAW (Spiral) Welding Process
Step 04
Dimensional Inspection
Step 05
Plasma Cut
Step 06
Hydrostatic Pressure Test
Step 07
Grit Blasting
Step 08
Bitumen Wrapping
Step 09
Bitumen Thickness Inspection
Step 10
Holiday Test
Step 11
Concrete Lining
Step 12
Concrete Thickness Inspection
Step 13
Peel Test
Step 14
Cube Test
Step 15
Final Inspection
Step 16
Curing
Step 17
Storage
Step 18
Delivery
Specification
