1. After welding and polishing, there is no bad welding quality such as sand hole, crack or blackening, and the hardness after welding is consistent with the base material; 

2, good quality wire surface with metallic luster, good toughness, moisture absorption easy to rust, rust will not rust wire because of its surface coating of anti-rust layer thick, or its material close to the stainless steel composition, easy to produce trachoma after welding or easy deformation off, or hardness is very low.Lasers can melt, burn, or vaporize almost any material.If the wire used contains heavy metals, or the surface of the wire coated with anti-rust coating contains toxic ingredients, these gases and steam will endanger human health.We suggest that the majority of users of laser welding should be vigilant and do not use laser welding consumables in order to ensure the health of laser welding operators and improve the technical quality of laser welding die in China.