Parveen Industries Pvt. Ltd. Designs and manufactures Lift Subs and Lift Plugs. The Lift Subs and Lift Plugs fall in the category of Tubular, Drilling, Work-over Tools and Cementing Tools. Parveen Industries Pvt. Ltd. Is an ISO 9001:2000 certified company. The lifts plugs are specifically made to suit various sizes O.D. Drill collars. The bottom portion is threaded; the center section is bored to reduce weight. The lift plugs are manufactured from materials and heat treated to drill collar specifications. The lifts subs are also manufactured from standard heat treated drill collar material.