“bonnet valve”簡單造句，bonnet valve造句子

"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.

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