DUAL CHECK VALVE 10" 150 ( STOCK HAM ) DUAL CHECK VALVE 48" 300# ( STOCKHAM ) GATE VALVE CLASS 150#A216 WCB, RF, FLANGE 2"ANSI - 30" ANSI. GATE VALVE CLASS 300#A216 WCB, 2"ANSI - 34" ANSI. GATE....
China electronics technology group corporation NO.8 research institute, a national owned corporation . And established in 1970 and is the first unit engaging in the research, popularization and....