GB/T 12459  弯头 DN 80-690ES060RF2251RFFCr17F9FM9Fch8 RF48)-16RF=20.6 R

DN 80-6 90ES060RF2251RFFCr17F9FM9Fch8 RF48)-16RF=20.6 R

LWN 40-600 T Sch40S

HP-2 ╨┐┬Ò╨ÀΓê

so 50b-300 rf

SO15(B)-40 TG/T20592-2ذ آ ذ¢ز›ذ ذ†ذ²ز–ر‍ذ²ز�

20592 WN200B-63RF/i

WN200B-100RJ S=14.5

WN 50(B)-25 RF/f/51

WN