GB/T 12459  弯头 DN 400-Ⅱ-1090E3D25F SRFR 1Ssp@b0F ScÃ�

DN 400-Ⅱ-10 90E3D25F SRFR 1Ssp@b0F ScÃ�

47023 M450-6.4/

47022-fm1700-1.0-730-1.02l50(b)tml4.0/0sch40h

3 FM 600-1.6/

1 RF 650-1.0 δs=8

PL 200(B)-10 RF

SO100-150 RF1k5RF55RFSCH160(3

1 RF 500-0.6آ°ذ s0.F1

WN580-150RF0 RF B=77.7FR

PL 100(B)-10 R