GB/T 12459  弯头 DN 1400-Sch4045E3D2.0036.0 r00b3/

DN 1400-Sch40 45E3D2.0036.0 r00b3/

法兰WN25-40RF.

so150(b)-16RF16r0 rf0300

BL700- 16RF=12 S=8RC204.5S

WN40-100RF-1.00

LWN50 -300 RF200-1.6=

PL 50(B)-16 RF.7F856-13RF50h40020(0F80

BL500-16 RFh80h4

WN65(B)-10 RF 7049F S6RFS15 S=3 B ╨┐4 Tpam

bl25-