TONGBALL valve co.,Ltd focus on producing Ball Valve Components over 10 years, Take advantage in metal to metal solution. 
Products are trusted and used for ball valves in various applications in any field (chemical, petrochemical, food and so on)

PRODUCT RANGE:
Ball Valve Components: BALL, SEAT, STEM

Material: 
Stainless steel: F316(L), F304, F6A, F321, F44, 17-4PH 
Carbon steel: A105, LF2, 4140, F60
Duplex & Super-duplex: F51, F53, F55
Special Material: INCONEL 625, 825, 718; Monel 400, 500; HASTELLOY 

Size: 1/2" to 36", ANSI 150# to 2500#
Standard: ASTM/ Nace/ ASME
Metal to metal balls, surface material : Tunsten Carbide, Chrome Carbide, Stellite, Nickel... 
Lapping: Lapping the metal to metal kit (ball and two seat); " gas-tight" test to ensure a perfect sealing

Certificate: ISO 9000, CE, ISO14000

Facility:
Production located on 6000 ㎡ plant, over 90 qualified worker.