HG/T 20592  法兰 PL 600(B)-40 RF SRFRF16п╟п÷п╒п┴п╟п▒я┌б∙б≤п╟

PL 600(B)-40 RF SRFRF16п╟п÷п╒п┴п╟п▒я┌б∙б≤п╟

SO 40-16 RF/u.550-16S=7 s d=480-1.4 RF=2

PL 50(A)-25 RF b=3m/0S2�FM-1

BL 25-40RF2/0 RF f/in00-1-=20HC80S V0/5(b)

WN24"-300 RF SCH60

SO50-40RFРRFRFFSch400

pl100(b)-6ff b