GB/T 12459  弯头 DN 300-890EL200-22 Brf&aط

DN 300-8 90EL200-22 Brf&aط

LWN 40-150 RFР

WN40-150RF B=416RF414 S=3.1FS

PL200-16FFHG/T2055.065600-s/RC814/RFFj& TF

WN 20-40 FM/8 BB=637.6=170S=NPTfM

PL150-10 FF4.5Rs

bl65(b)-40 rf-2.5B16.5nb4.50rfb

PL150(B)-10RF S30408h=S s

BL150(A)-25 G.300

BL50(B