用bonnet valve造句子，“bonnet valve”造句
來源：國語幫 3.36W
MATERIAL AND SERVICE– Cast steel bolted bonnet valves are available in a variety 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."
Pacific cast steel bolted bonnet valves are supplied in a wide range of body/ bonnet materials and trims.
