NB/T 47021  法兰 C-FM 800-1.0/3F S-1050rf sRH1659ذRF rfrf h=178530S=10S=4-1

NB/T 47021 C-FM 800-1.03F S-1050rf sRH1659ذRF rfrf h=178530S=10S=4-1

WN 1 1/2"-300 RF B=15-30

SO 8"-150 RJFRFch40-16biiu00f bb=15546 H=200-251 RF

DN65/PN16/05A80SM=m.html d=1

HP-2R5S0S05G/S=5080

BI 550fF sc546 H=200-251 RF

WN 200(B)-100 RF