NB/T 47023  法兰 C-T 2800-0.6/20δ0=

3 CT 2800-0.620δ0=

BL FF 10K 80A67023 RF1 S=955RF=4/1.6æÂ00RF SCH=40 M6RF RRm.htm

WN 600-25 RF Sed=43a16592-2009RF N14F=20060RJ

BL65-2500RJ

LWN15-900Gh=229џРЋљлЉРѕ

SO10(B)-16t1)h4h40SF/

LWN15-900Gh=229

BL150-150 FF

bl25B)-150 RF S/

SW40-