GB/T 12459  同心异径管 DN 200×100-Ⅱ-Sch40SRCCH40S=�—206pa00fm

DN 200×100-Ⅱ-Sch40S RCCH40S=�—206pa00fm

bii1000Fh.00Г501. S0 FF RF Sch80f(B5bS=1F 5K 100Am LT300 RF@400/

20592pl300b-10rf�SO20(B)=5�0S0RF S=7AAAAAAAAAAAAAAAAAAF S0rf

WN 65(B)-16 RF S=3.5�40-R�5-T-10RF8-150 RF BRpampamp

WN400-900RFr/�