Parveen Industries Pvt. Ltd. Offers Red Nut Grey Subs Hammer Unions. The Red Nut Grey Subs Hammer Unions falls in the category of the Treating Irons, Unions, Swivels and Circulating Heads. Parveen Industries Pvt. Ltd. Is an ISO 9001: 2000 certified company. The Red Nut Grey Subs Hammer Unions use lip type seal ring end here faces of male and female sub are perfectly square. These are available in 5 inch and 6inch butt weld sizes.
