GB/T 12459  弯头 DN 20-3.890ELmpmpampq

DN 20-3.8 90ELmpmpampq

SO65(A)-150 RF rf0 RF rf

WN 600-900 RF Sch80b)-16 rf

支腿 A25h0/@400�

SOP FF 20K 20Ah40splborum@ï؟½ s5 RF6500 RF

47021 rf350/@so100(b)-16 rf

SP-1/u0 C80022m00 RFqovb0S=2�

SO25-150 RF Sch/=

法兰 WN 250-150 RF Sch40/

B