GB/T 12459  弯头 DN 40-790EL

DN 40-7 90EL

47023 rf1400-1.0 δ=60 h=120

LWN 50-300 M

PL 80(B)-25 RF

PL 25(B)-6 FF

A WN 42"-150 RF B=11.13

SP-3702

WN 50(B)-16 FM S=5

BL300-6 RF565

LF/SE 20-150 RF1592F0S6.0RF0010S�=3031ð000rF0RF S=258 S=2.11��WN1F16p@�6B)-10RF@F