GB/T 12459  同心异径管 DN 100×65-Ⅱ-5RC

DN 100×65-Ⅱ-5 RC

47021fm800-0.6D Sch

DN 32-8 TS=5.61

HG5010 PL40-16RFmpa

PL20(B)-16 RF�(40RF-Rï؟½ï؟½0

WN 600(B)-10 RF S60

WN100-100MFM-300/sRF

WN 80-150 RF5rfR64RW5g/N

BL 3"-150RF

WN 80(B)-25 RF Sch80S�S401b)-2.5rf94 RF Sch1äf18F