GB/T 12459  弯头 DN 32-Sch4090ELFf b10rf==416 RF

DN 32-Sch40 90ELFf b10rf==416 RF

WN 150-10 RF S=6.65tch40 Sc

pl125(b)-10ff l=2

PL 250-10 FF C=

WN 500-16 RF Sch10/data

BL 500-16 RF/data

PL25-25M

WN 500-16 FF Sch10/data

PL 500-16 FF Sch10/data

SO 2"-150 RF�ขยฐุ�SM0 RF/F Sch8�=5Т–