Outside diameter wall thickness In mm mm14 356 6,8,10,12,14,1616 306 6,8,10,12,14,16,18,20,22,24,25,28,3018 457 6,8,10,12,14,16,18,20,22,24,25,28,3020 508 6,8,10,12,14,16,18,20,22,24,25,28,30,35 22 559 6,8,10,12,14,16,18,20,22,24,25,28,30,3524 610 6,8,10,12,14,16,18,20,22,24,25,28,30,3526 660 6,8,10,12,14,16,18,20,22,24,25,28,30,35,4028 711 6,8,10,12,14,16,18,20,22,24,25,28,30,35,4030 762 6,8,10,12,14,16,18,20,22,24,25,28,30,35,40,4532 813 6,8,10,12,14,16,18,20,22,24,25,28,30,35,40,45,5034 864 6,8,10,12,14,16,18,20,22,24,25,28,30,35,40,45,5036 914 6,8,10,12,14,16,18,20,22,24,25,28,30,35,40,45,5038 965 8,10,12,14,16,18,20,22,24,25,28,30,35,40,45,5040 1016 8,10,12,14,16,18,20,22,24,25,28,30,35,40,45,5042 1067 10,12,14,16,18,20,22,24,25,28,30,35,40,45,5044 1188 10,12,14,16,18,20,22,24,25,28,30,35,40,45,5046 1168 10,12,14,16,18,20,22,24,25,28,30,35,40,45,5048 1219 10,12,14,16,18,20,22,24,25,28,30,35,40,45,5052 1321 10,12,14,16,18,20,22,24,25,28,30,35,40,45,5056 1422 10,12,14,16,18,20,22,24,25,28,30,35,40,45,5060 1524 10,12,14,16,18,20,22,24,25,28,30,35,40,45,50 producing area:China