GB/T 12459  弯头 DN 20-Sch40S180EL25SRF0RF SCH4

DN 20-Sch40S 180EL25SRF0RF SCH4

SP250202210F4.0/64-14055

3 fm1100-4.0/fo

SP-6-2-50(B/ff98=8BL12f0-1.0,�

pl350(B)-25 RF/LScFF1

WN32-300RFAh5

LP-2=27292-23FM400-1=F-p¬ pL500-25

LF/SE 65-150 RF SF

3 M 800-1.0 δ0=6F0-0 1 RF142-2N16f0 RFWN3000150

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