Brass:

Sch. 40 & 80 etc.

Copper:

Types (K,L,M) Hard & Soft, Refer Tubing

Fletcher & X-Tru Coat:

Blk. and Galv.

Plastic:

PVC, Sch. 40 & 80, Class Pipe, CPVC

Stainless Steel:

Pipe: Type 304/316 Sch. 10,40,80 etc.
Tube: Type 304/316 Polished & Bright/Annealed, etc.

Steel:

Welded & Seamless, All Schedules, (A-53, A-106) etc.