J48H-10-DN10,J48H-10-DN15,J48H-10-DN20,J48W-16P-DN10,J48W-16P-DN15,法兰式针型阀


80


1Cr18Ni9Ti


450


水，蒸汽，碱，酸


3.2




J48W-16P


1.6


15


118


10

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