1. **Welded groove pipe fittings are made of thick-walled seamless steel pipes and forged blanks**:

- **Purpose**: Used to connect high-pressure pipelines, fire protection and other systems.

- **Features**: Easy to install, one end is locked with a slot, and the other end is welded, suitable for high-pressure environments.

- **Specifications**: 1/2”-6” (DN15-DN100); product length and groove width can be customized as needed.

- **Thread**: NPT, BSPT, ISO228-

2. **Features of pipe fittings**:

- **Purpose**: Used for fire protection high-pressure and high-temperature pipelines, oil extraction, and other system industries.

- **Features**: Made by forging process, with high strength and good pressure resistance, suitable for harsh working conditions.

- **Type**: One-end groove of equal-diameter and reducer pipe fittings, one-end thread and one-end groove, two-end groove, etc. .

These products play a key role in fire protection and pipeline systems to ensure the safety and reliability of the system. Different materials and specifications can be selected according to needs.