应对带充填剂液体材料的超小型针阀。
Use these super-small, lightweight valves with fluids containing fillers.
针形阀用于小型辅助管线系统。
针形阀是一种节流和切断特高压(与其它阀门相比)流体的小型阀门(通常为1英寸或不到1英寸)、结构简单、坚固耐用。
Needle valves are a small (usually 1 inch or less), simple, and rugged means of throttling and shutting off extremely high pressures compared with other valves.
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