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Its special design allows its use in both water and waste-water applications:

The German Association for Gas and Water, known as the DVGW, has been setting technical standards for a safe, reliable supply of gas and water for 150 years now

The bob综合体育官网下载 EKN® Butterfly Valve uses nickel-chromium alloy (ratio 71:19): The property of chromium is that at high temperatures, it has a high affinity to bond with carbon