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UPVC 安全/背压阀
Size: 1/2"~2-1/2"
Material: UPVC
Standard: DIN/ANSI/JIS/CNS
Film: EPDM/FPM/PTFE(Composite film by EPDM&PTFE)
O-ring: EPDM/FPM
Connect End:Socket end/G thread/BSPT/BSPF/NPT
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