irection flow, which is more convenient for installation and usage.6. For the spare parts material and flange size, can be customized according to different actual working condition to meet project requirements.Material Option:Carbon steelA216 Gr.WCB ,?WCC ,?WCA ,?etcLow temperature steelA352 Gr.LCB ,?LCC ,?LC1 ,?etcCr-Mo steelA217 Gr.WC6 ,?WC9 ,?C5 ,?C12 ,?C12A ,?etcStainless SteelA351 Gr.CF8 ,?CF8M ,?CF3 ,?CF3M ,?CF8C ,?etcAlloy steelCN7M alloy 20 ,?CN3M alloy 20 modified ,?C