Thanks for coming to our store
Note: this price=1pcs
Buy 2pcs 4pcs 8pcs=precise pairing (matching group). No parameter drift
Regarding the matching, all of our tubes are matched in the factory production workshop. The matching is accurate (not all tubes have been matched). We have the conditions and advantages to match multiple tubes (four, eight, ten) according to customer needs. The parameters of the two tubes are the same)
Precise matching (matching), no parameter drift.
Shipped after rigorous testing. One year warranty
Note: (Please don&39;t think it is a fake or shoddy product after receiving the tube).