China supply straight copper pipe for water tube :

AMERICAN STANDARD ASTM B88 SEAMLESS COPPER WATER TUBE

STANDARD LENGTHS
The standard lengths for drawn temper ASTM B 88 tube are 3.658m(12ft), 5.800m(19.03ft) and 6.096m(20ft).Annealed tube, in 60ft coils (18.288m), is available in nominal 3/8, 1/2, 5/8 and 3/4 diameters, and Type Kand Type L wall thinkness.

TYPE M:
Size:3/8",1/2",3/4",1",1-1/4",1-1/2",2",2-1/2",3",3-1/2",4",5",6",8",10",12"
Type K:
Size:1/4",3/8",1/2",5/8",3/4",1",1-1/4",1-1/2",2",2-1/2",3",3-1/2",4",5",6",8",10",12"
Type L:
Size:1/4",3/8",1/2",5/8",3/4",1",1-1/4",1-1/2",2",2-1/2",3",3-1/2",4",5",6",8",10",12"