R512型高性能无销中线蝶阀在引进国外先进技术的基础上采用轻柔的接触式阀座和优良的多重密封构造能有效防止外漏。
R512 type High performance concentric butterfly valvesadvanced foreign technology on the basis of soft contact seat sealing structure multiple can effectively prevent leakage.
R512型高性能无销中线蝶阀在引进国外先进技术的基础上采用轻柔的接触式阀座和优良的多重密封构造能有效防止外漏。
R512 type High performance concentric butterfly valvesadvanced foreign technology on the basis of soft contact seat sealing structure multiple can effectively prevent leakage.
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