wellhead equipment• Casing head and casing spool use standard design, and can apply to all kinds of JMP slip and mandrel type casing hanger. • Straight-bore Design 45°shoulder design with high load capacity. • Side Outlet Connection Form Pipeline thread side outlet Threaded flange side outlet, design with VR plug. • Secondary Seal Design with multi-structure secondary seals at bottom. Installation can be performed on spot per different structure types, injection or non-injection can achieve seal. • Interchangeability of Casing Hanger Casing hanger design with standard profile Interchangeability between slip casing hanger and mandrel type casing hanger • Connection Forms between Casing Head and Surface Casing Threaded bottom type Welded bottom type Slip bottom type