BSP Threaded Fittings BSP Threaded Fittings BSP Threaded Fittings BSP Threaded Nipple BSP Threaded Nipple BSP Threaded Nipple Class 3ooo Coupling & Tee Class 3ooo Coupling & Tee Class 3ooo Coupling & Tee Threaded Plug and Cap Threaded Plug and Cap Threaded Plug and Cap 2 9 月, 2019 What is EN ISO 4144 EN ISO 4144 covers the types, pressure-temperature ratings, materials and minimum dimensions of steam, air, gas, water and oil ordinary applications. Knowledge