ASME B16.5  法兰 SW 1 2/1"-300 RF)-10rfLv��п│п⌠п▌п╡Б�

SW1-2/1"-300 RF)-10rfLv��п│п⌠п▌п╡Б�

WN20-150 RF Sch40=12.5 &ampampa7m(EL170-

PL15(B)-16RF2515-=4

DN80-PN63 PLB=96-1

bl20-300fm

WN250(a)-10rfh40.RF-20-

SW15-900 RJ rf/

WN 1800(B)-10 G S=5ot

SW32(B)-16 RF B=2550205926rf�