They are available made from bar stocks sand casted , investment casting in variousmaterials, likes SS 304, SS 304L , SS 316, SS 316L , IC CF8, IC CF8M, IC CF3, ICCF3M.AMTECH SINGLE PC design are regularexporting valves to Europe, America , Asiaand Gulf Countries .Sizes -14" to 4"(6 NBTO 100 NB).We manufacture valves from genuine guaranteed raw material with material test certicate , hydraulic testcerticates , Mill TC 3.1.b available withall supply.