“bonnet valve”造句，怎麼用bonnet valve造句

Pacific cast steel bolted bonnet valves are supplied in a wide range of body/ bonnet materials and trims.

"Where higher operating pressures approach 150 psi, Class 150 union bonnet valves of like construction will be used. Valve ends may be threaded or solder-type."

MATERIAL AND SERVICE– Cast steel bolted bonnet valves are available in a variety of body/ bonnet materials and trims.