â¢ Surname is the family name or the last name of a person, whereas first name is the unique name given to a person at birth, also referred to as his Christian name. â¢ Surname is passed down generations, whereas first names are unique depending upon physical attributes or circumstances at birth of a kid.
PVC pipe is available in a wide range of wall thicknesses and strengths (pipe. stiffness). PVC pipe is routinely perforated (slotted) and used as well screen. This same slotted pipe can also be used for toe drains. Slotting is done at the. factory, and slots are available in a wide range of slot widths and POA.
Spiral Weld Pipe is used for dredging, slurry, water and other pipelines, as well as piling and structural applications. Spiral Weld Pipe is produced in accordance with the dimensional and tolerance requirements of various ASTM, AWWA, and API Specifications.piral Weld Pipe is used for dredging, slurry, water and other pipelines, as well as piling and structural applications. Spiral Weld Pipe is produced in accordance with the dimensional and tolerance requirements of various ASTM, AWWA, and API Specifications.