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10
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Contact Person Ms. Aida
No.5369 Nanting RD, Shanghai, shanghai
the appliable tempreture**0air ,petro,water xxxxx the equipment or pipe&#****2;when the inner stress of the pipe beyond the permission. &#****2;the valve will open automatically&#****2;then let it out completely ,when the stress reduce to the permission&#****2;the valve will close automatically&#****2;guaratee the run of the equipment and pipe.
