The product is a 4" weld neck flange made of 316L stainless steel with a flat face design. It is a Class 150# fitting with a Schedule 10 rating, meeting B16 standards. The brand is Chandan, and the country of origin is India. This flange is designed for use in hydraulics, pneumatics, pumps, and plumbing systems in industrial settings. It provides a secure and durable connection for various applications requiring reliable fittings and adapters. The flange was bored from sch 40 to sch 10 piping fast shipping