1.the power supply adopts the vertical external characteristic, and the positive polarity is used in the direct current (the welding wire is connected to the negative electrode).2.it is generally suitable for the welding of thin plates below 6mm, with the characteristics of beautiful weld bead and s

1.the power supply adopts the vertical external characteristic, and the positive polarity is used in the direct current (the welding wire is connected to the negative electrode).2.it is generally suitable for the welding of thin plates below 6mm, with the characteristics of beautiful weld bead and s

Definition of thread: A thread is a shape with a uniform spiral protrusion on the outer or inner surface of a solid. Why use thread?Tightening and connection: suitable for most screw products at this stage.Transmission function (displacement function): such as a micrometer for QC to check the size.S

Stainless steel fasteners will lock up during use. The locking phenomenon has its own objective factors. Because stainless steel and carbon steel have inherent differences, stainless steel has good ductility, but the hardness has a certain gap with carbon steel. Stainless steel bolts and nuts will p