GB/T 12459  异径三通 DN 900×900×550-Sch40TR

支腿 A2.0F-1.00 RFRFF-)/-15=440SD

DN 900×900×550-Sch40 TR

WN 10(B)-6 RF S/ D=210 C=

47023FM1200-1.6/80-150/64-140R9

3 FM 2400-1.0RF Sc-76-0-150RF sP0f/N26/

SO50(B)-40 tnvoker/j/

WN 215-1500 RJ SCH s=3f0ƒ65 2=40fm600(b26

PL300B-10RF b=3

BL1000-2