We are a factory that produces high-quality hydraulic fittings such as our Male O-ring Boss Union, product number 6407. This union is made with precision machining to ensure a tight and leak-proof seal. It is designed to connect two hydraulic lines together with ease and reliability. Our Male O-ring Boss Union is made with durable materials to withstand extreme temperatures and pressures, making it the perfect choice for a wide range of hydraulic applications. Trust our factory to provide you with superior quality hydraulic fittings that you can rely on.