GB/T 12459  偏心异径管 DN 250×150-6REu¹

DN 250×150-6 REu¹

2 M 1400-1.6 δ1=20

PL 450(B)-16 RF

20592 BL200-300 RF

SP-106072057 A=538RF1.66rfFFt Std9@4597Fs0B)--6Fh40SJ00F@RFch60@RF@4 Rch44060f RF

WN 3"-150 RF Sch80

WN 20"-900 RJ Sch80

WN80(B)-16 RF

DN800-PN16 PL/W-B RF Ⅱ

SO150