采用锥角过度节流油嘴设计、多级节流油嘴降压设计和多路放喷管汇设计，达到延长管汇寿命保证安全生产之目的。
Improvement program use of cone Angle chokes; multi-nozzle chokes and multiple exchange design to extend manifold service life to ensure safety.
采用锥角过度节流油嘴设计、多级节流油嘴降压设计和多路放喷管汇设计，达到延长管汇寿命保证安全生产之目的。
Improvement program use of cone Angle chokes; multi-nozzle chokes and multiple exchange design to extend manifold service life to ensure safety.
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