... pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material Material Composition201202304316430C≤0.15≤0.15≤0.08 ... timeA.7 days if this goods is stock goods.B.15-30 days if this goods will be produced ... fertilizers, petroleum, central-station, boiler, power stations, shipping military, chemical industry, environment protection, traffic, metallurgy,mine, printing and dyeing, ...