
Patents 14

Patents13

Patents12

Patents11

Patents10

Patents9

Patents7

Patents6

Patents5

Patents4

Ball valve patent certificate

c1953a68-79ba-4bad-9921-94bf9820f28a

29ebf83d-7ebf-4baf-8ccb-734eb9c20a9a

15-Zhitai-A kind of AT full-stroke adjustable actuator-Patent Certificate

13-Zhitai-Three-position gas moving actuator-Patent certificate

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10

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