... engineering especially Purlin, wall beam,Lightweight type truesses, pipe construction component,Mechanical light industry production of beam and column,etc.Advantages ...
Casing head, as a component of wellhead, is applicable for connecting with casing by the ... a hanger in the casing head ... Casing head, as a component of wellhead, is applicable for connecting with casing by the ...
... assembly ,hydraulic perssure station and steam system ,electronic control system component mainframe.1.The main frame adopts superior international steel plate ...
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