Crossover Subs

We are supplying various types of subs for Industrial use. these crossover subs are mostly used by our oilfield clients. these subs have 2 main applications. It can be used to connect 2 different sizes connections, or as a disposable part used to prolong the life of more expensive drill stem components.We have steel AISI 4145 H Modified, in accordance to the requirements of A.P.I. Spec 7-1.We can manufacture various types of subs with required custom O.D. sizes, complete with A.P.I. connections or premium connections & stress relief features (as client required), so that your purpose can be completely solved.There will be Material test certificates, Certificates of Conformity & 3rd party inspection reports will be provided to our customers for complete details about product and the standards.Some of the types of subs are as follows:Crossover SubsCirculating subTop drive saver subLift subBit sub with float boreLift nubbin