法兰 WN 50-1500 Msch40 k=S= fm50595.6H40 50(a)-16rf5=3.70F@wn1/6.55
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  • 7ф92.1ф165.1
    ф60.3102R≥3R≥4.5ф60.3ф105 ф21538.1ф268