GB/T 12459  弯头 DN 400-790ELm104B)-0.2

DN 400-7 90ELm104B)-0.2

swsw40(B)-16 RF1FIh2h80@4

47021 c-ff300-1.0

SO15(B)-16FM B1=ch40s26 RF

PL 80(B)-16RFch160300RF20F B=416/

WN89-600 RF Sch40

wn300-600rjs=14M60b)-1

hg/t20615-2009so300-150FM

so80-150Ff2RF

a1900-15mpqb=0RFSch1100-c1/b)- BLF D=.6/