The provider that supplied the tube stainless steel 1.4441 wants more to tube with this material. Accused person is a net stop. However given that tubes are never in contact with skin do would not possible to make the tubes in 1.4435, less expensive stainless steel material and this material it there still manufactures. In the meantime I prospect among other providers for the 1.4441 using the klein House, but this seems so obvious that to find a provider competent in the matter. Notify me about material 1.4435 If yes or not