GB/T 12459  弯头 DN 40-Sch4090ESEL10K 800AR

DN 40-Sch40 90ESEL10K 800AR

SO 80-300 RFrf0-f

SO 65(B)-25 RF0 b-1.

SO40-16RF50(b)-RF R0c

SO150-150 RF=50000R-16 RF2w84haH不要水�

SO500-16 RF-B00/5.5 RF;a

pl65-25 rf

WN250-25RFS=12

WN250-150RF Sch80s5-10RF0sbfc40615�data5 RJ0S

PL10(b)-16RFs/@b�