HG/T 20615  法兰盖 BL 80-300 RF D=20

BL80-300 RF D=20

WN15B-160M S=4�0 δ=60 H=120-3016m�▒Б■─Б�

TPB-400-1.0h80s12

APB-10т•

wn25(a)-16 ff d=100 k=75 l-5Fch10sh10sS T

BL450-10RFD=65 BRFRFrfrf80S1C=70 K=

SO 80(B)-25 RF-1rfp0F H RF92=120s-

wn40-150rf a06rf rf=1=98

WN250(B)