GB/T 12459  弯头 DN 65-290ES��п▒Б■�

DN 65-2 90ES��п▒Б■�

BL 100-16 RF0/u80=4.5.60.FR68

WN70-150 RF Sch10=10/Sch160S

pl100b-25rfb.080-1.5400 RFPL2.15

BL200-10 RF S=1/RF-=3.5A2/h8

NB/T47065.2 B5-1000-46 RF5f40RF09PL5080/ RFS=

PL150(B)-6MF167S

PL 150(A)-10 RF1.0Sch40RF

PL20(B)-