GB/T 12459  弯头 DN 300-Ⅱ-690ES S=4.5330c3/6

DN 300-Ⅱ-6 90ES S=4.5330c3/6

WN125(A)-10 RF SCH10

WN300-150 RF S=11-N100-151J-3)

SO80-16RF60 H=115 δ0=8

SW 10(B)-63 RFf=5j/MF Schr/ RF1=6 sc615ch

LWN250-300 RF B=255 H=35890

PL 450(B)-16 RF0 RFFF250AFRF@ch40F-16rf b0 S=8 C=860c2/u

LJ 10"-250