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By certification 
Rubber expansion joint
Tapped DN10-DN80
Flange DN25-DN3200
Connection Threaded Flange
Stainless steel flange material Ductile Iron
DIN PN2.5 / PN6 / PN10 / PN16 / PN25
ANSI b16.5 CL150 / CL300 b16.47 CL150 AWWA C207
JIS 5K / 10K / 16K
Rubber EPDM NR NBR CR Viton
Structure: single ball (single sphere)/ double ball (double sphere)
Groove button / fully sealed rubber flange type
Overall vulcanized rubber expansion joints
Tapped DN10-DN80
Flange DN25-DN3200
Connection Threaded Flange
Stainless steel flange material Ductile Iron
DIN PN2.5 / PN6 / PN10 / PN16 / PN25
ANSI b16.5 CL150 / CL300 b16.47 CL150 AWWA C207
JIS 5K / 10K / 16K
Rubber EPDM NR NBR CR Viton
Structure: single ball (single sphere)/ double ball (double sphere)
Groove button / fully sealed rubber flange type
Overall vulcanized rubber expansion joints
