tianjin huachangxingye technology co.,ltd: INTEGRAL CROSSOVER，Integral fitting Crosses，F X M X M FIGURE 1502 TEE，1502 INTEGRAL PUP JOINTS，1502 NPST PUP JOINTS，INTEGRAL FEMALE PLUG，INTEGRAL MALE PLUG，FLANGE ADAPTER，QUICK OPEN BRASS GATE VALVE，FRAC NIPPLE / FRAC HOSE sub，Frac Tank Hose，Frac Union(frac fitting)，Sleeve Couplings，SWAGE NIPPLES，tubing nipples，Tubing Bull Plugs，Oil Country Bull Plugs,，Line Pipe Swages，Casing ...