... company manufactures and sells casing and tubing couplings,pup joints, tool joints, adapter pup-joints, adapter couplings, stabilizers, anchors ... Produced(Previous Year) Tubing Coupling, Tubing Pup Joint/Crossover, Casing Coupling, Casing Pup Joint/Crossover, Centralizer 3,500,000 Pcs / ... -Expired Date API (Spec 5DP) American Petroleum Institute 5DP-0135 Tool Joint & PSL 1, 2, 3 2012/04/20 --- 2013/ ...