美国`UE`开关`UNITED ELECTRIC`差压变送器J400K-456 0-60KPA J402-126 0-1.6MPA J400K-456-126 0-60KPA J400K-456 0-1MPA G400K-456 J400K系列J400K-147 J400K-157 J400K-455 J400K-456 J400K-457 J400K-559 J400K-S147B J400K-S157B JK系列:JK-36 JK-37 JK-38 JK-39 JK-147...