1.SPECIFICATION 1)Size: 1/2"-4" special inspector inspect the goods in random during the period time of production. 3. About Packaging and Shipping 1) The package standard : standart export carton, box. 2) If customer has special requirement. it is available to provide   the colorful package against the design of customer.
2)standard: full port
3)Temperature: -20
4)threaded:ISO228/1
5)opening /closing tests:20000times
2.Quality and inspection
Fegular checking on line from production in each workshop, one
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