Dongrui Petroleum Supply Rongsheng Shenkai BOP spare

• Interchangeable Spares: Tianjin Dongrui manufactures and supplies replacement parts and sealing elements that are 100% interchangeable with original Shenkai and HRSB BOP models.
• Accessory Manufacturing: They specialize in high-pressure components that complement these BOP stacks, such as spacer spools, drilling spools, and lifting devices.
• System Integration: As a comprehensive machinery manufacturer, they often provide these brand-name spares as part of broader equipment maintenance and integration packages for oilfield operators. 

• Rubber Sealing Products: Annular BOP packing elements (spherical and conical), ram rubbers, top seals, and front seals.
• Ram Assemblies: Pipe rams, blind rams, shear rams, and variable bore rams (VBR).
• Mechanical Components: Bonnets, pistons, shells, and locking mechanisms.
• Connection Hardware: API 6A/16A compliant flanges, studs, and specialized end connectors. 

• Shenkai (Shanghai Shenkai Petroleum Equipment Co., Ltd.): A publicly listed leading OEM for well control equipment in China.
• HRSB (Huabei Rongsheng Machinery Manufacture Ltd.): The world’s leading manufacturer of land BOP equipment by volume.