Parveen Industries Pvt. Ltd. Designs and manufactures Non Magnetic Drill Collars. The Non Magnetic Drill Collars falls in the category of Tubular, Drilling and Work- over Tools and Cementing Tools. Parveen Industries Pvt. Ltd. Is an ISO 9001: 2000 certified company. The Non Magnetic Drill Collars are made from extremely clean steel. The features are low permeability, high mechanical properties and superior resistance to corrosion cracking. The Non Magnetic Drill Collars display high strength and low permeability throughout the product. These Non magnetic Drill Collars are of Cr-Mn Type.