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stainless steel bottom tube and a copper nozzle. The copper nozzle has different styles
and can be used in different scenarios. The corresponding copper nozzle is required to
use different thickness of welding wire. Refer to Figure 12.
■ Replace nozzle：
（1） Before replacement, the laser enable should be turned off, and the welding
head should be facing in front with no one ahead;
（2） Unscrew the copper nozzle counterclockwise;
（3） Replace with a new nozzle.
Fig. 12 diagram of nozzle replacement
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