A wide variety of parts for choke and kill manifolds are available from Technolab. Products include chokes, spools, crosses, tees, and gate valves, among others.The following brands are among the ones from which we source butterfly, check, gate, plug, and ball valves. We rely on an extensive selection of valves to handle over 90% of industry applications, ranging from the most basic to the most intricate, demanding, and complex.