Pneumatic baffle through PM-4 6 8 10 12 mm trachea PU quick insertion plate fixed copper connector

===under info was translated buy computer===
Pneumatic baffle through PM-4 6 8 10 12 mm air pipe PU quick insertion board fixed copper connector; Weight: 0.012; Durable; Easy to install; Resistance to high pressure; No detachment; Good sealing;
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