Tubing Head Assembly are installed on the upper end of the casing head, which consist of tubing head spool, tubing hanger and seals. Tubing hanger are used to support a tubing string in a tubing head, seal off the annual space between the tubing string and production casing. Tubing head spool are used to positive and reverse circulation well clean-up, observe casing pressure and carry out work through the annual space between the tubing string and casing string.offers a widely variety of tubing spools for all types of well completions: single or dual, which can accept a wide range of tubing hangers, easily convert from single completion to multi-completion, and have the location pin design