GB/T 12459  异径三通 DN 500×500×90-Sch160TR

DN 90×90×500-Sch160 TR

WN300-300 RF Sch40ch160

WN600(B)-40RFB2-6rff=620 Lm S0°w

BL150A-16RF

SP-1

wn80-25 rf s=1106B0

wn 15-300RF40 g

wn40-16fm s= aa= nb)

2 M 600-2.520δ1=12

WN600-600 RFБ�RF BB0 H=165fmA=80 b=3 R�沤脗.620δ1=12FF S5050 w-3