This API standard specifies the requirements for a heavy-duty series of bolted bonnet steel globe valves for petroleum refinery and
Continue reading![API St 623:2013](https://www.365standards.com/wp-content/uploads/2023/03/API-St-623-2013.png)
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This API standard specifies the requirements for a heavy-duty series of bolted bonnet steel globe valves for petroleum refinery and
Continue reading