soil,waste and rain water
SWR means - S-Soil, W-Waste, R-Rainwater (these are all applications)
The full form of NPT is National Pipe Thread. It is a U.S. standard for tapered threads used to connect pipes and fittings in plumbing and gas systems.
Cold Rolled Coil Pipes
m.s. pipe
unplasticized poly vinyl chloride
Mechanical, electrical & plumbing
SAW PIPE = SUB MERGED ARC WELDED PIEP
The full form of PPE is Personal protection equipment which is an equipment that is worn by a worker/plumber to minimize exposure to specific occupational hazards. Plumbing PPE include respirators, gloves, aprons, fall protection, and full body suits, as well as head, eye and foot protection.
High quality concrete pipes are popularly known as HUME PIPE. (The full form of RCC is reinforced cement concrete)
Deutsches Institut fur Normung e.V. (DIN; in English, the German Institute for Standardization)
Deutsches Institut fur Normung e.V. (DIN; in English, the German Institute for Standardization)