T cells and B cells differ in the form of the antigen they recognize, and this affects which antigens they can detect. B cells bind to antigen on invaders that are found in circulation outside the cells of the body, while T cells detect only invaders that have somehow entered the cells of the body.
ABS, DWV, Solid or Cell Core sewer pipe. The solid pipe is composed of ABS at 99% while the cell core is composed of a cellular foam between 2 layers of ABS which makes the cell core pipe lighter.
Corrugated Metal Pipe. Corrugated Metal Pipe Joints. Foster supply offers a multitude of pipe sizes, shapes, gauges, coatings and materials options. We stock from 6 to 96 diameter galvanized pipe. Other coatings and shapes may be special ordered including pipe arch shapes, Aluminized Type II and asphalt coatings.