HG/T 20592  法兰盖 BL 200-10 RFh479

BL200-10RFh479

SO 50(B)-16 RF

BL50-16 RF

WN200-300 RF SCh80

47023 C-M900-1.0/54-120

SW15B-150RF00-4f5

WN 40(B)-16RF S=5

WN 3"-300 RF S=11.13

WN 500-150RF0-60011

WN 40(B)-16 RF S=3F S=4163SSRF Sch160��1@RF8@Rr�@RF@4 Rch44060fc6mS=.6H=360-9