Cast Iron Pipe Fitting Bend a. our products are made strictly according to EN877 standard. b. size range from DN40 to DN300 c. painting: inside and outside are epoxy paint in color yellow with thickness above 120 micron, If you have special requirement, please contact with us, as we could also make the painting according to your requirement. This paint has passed the same rigorous testing to which the pipes have been subjected including a 24 Hr hot water test at 95˚C, material hardness tests, tensile tests and a 1500 cycles water temperature test between 15˚C and 93˚C.