EN 1092  法兰 DN300/PN10/01B  500-s /

DN300/PN10/01B 500-s /

WN50-16RfG/T 20615-2009L2F0 RF Sch40sch80.5F S=4.5RF S=12-R@W RF RF�=ch40ot

so 200-300 rfb

TPB-11400 δn

WN3"-2500 RJ Sch40/m. RF@40S5

A WN 750-150 RF S=42@ RF510Rh40SME16.5rj/@SO100(B)-16 RFA5

SO 2"-150 RFRJrF0PLc