GB/T 12459  弯头 DN 80-Ⅱ-3180ESS=4(B)

DN 80-Ⅱ-3 180ESS=4(B)

PL125(B)- 10RF3.60616 RF SpampquotHG0 RJ Sch16010--0/

SP-4 DN=3800FF-2

DN40-PN63 WN G Ⅱ S=3.5

pl 200(B)-10 RF

TPB-5 δ=

WN 25(B)-25 RF S=3

BL150-150 RF

SO 200-300tf1==3MRF15) B2=4692-21000-116RSch60 LFM Sch120mpampam.5rfrf31