... /ISO14001:2004 4.Strength:experiences suppling big project like MIS Description of ProductMain Technical ParametersNominal pressure:1.6, 2.5, 4.0, 6 ... , 80, 100, 150, 200, 250, 300, 350, 400, 450, 500mmIntroduction of Our Manufactory 2013NEW sulfur resistance tube bundle rectifier for natural ...