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.
Products List. Perforated steel pipe is the most inexpensive and popular device for automobile exhaust system, filtration elements and decorative applications. Aluminum perforated tube have excellent corrosion resistance and high strength-to-weight ratio. It is ideal for the places where have strict requirements of weight.
Pipe materials and specifications. The pipes used in a building must not contaminate potable water supply, and must be suitable for the water pressure, flow rate and temperature of water they will be carrying. This will be influenced by the materials used and also by other factors such as the wall thickness.