There is a difference between lead and lead-free materialsMaterial: LeadDescription: The surface of the solder wire with lead is very bright, and the solder wire is used for the welding of similar products with lead. The melting point is relatively low, about 183 degrees, so the damage to electronic···

                   What is cross-border e-commerce ERP? In fact, the cross-border e-commerce ERP is the ERP system of the cross-border e-commerce industry, which is used for store management and docking with cross-border e-commerce platforms and···

YOYO Liu Xiaofei. Aluminum brazing (Sales and operation) :In the current rapid economic development, metal processing industry is becoming more and more mature, the performance of welding products has also been greatly improved, aluminum welding wire is more common, so the main material of this prod···

Is there any difference between aluminum and aluminum?Aluminum (metallic element)Silvery white light metal. It's malleable. Commodities are often made in rod, sheet, foil, powder, ribbon and filamentous form. In moist air can form an oxide film to prevent metal corrosion. The aluminum powder hea···

Welding safetyCauses of folding welding accidents1, when the welding cutting operation, especially when gas cutting, due to the use of compressed air or oxygen flow injection, the Mars, bead and iron slag splashing can (the larger bead and iron slag splash away from operating point 5 m away), when i···

Brazilian websites are well developed in various industries, and many websites are available in Portuguese, English and Spanish. Details of the association's members and enterprises can be obtained through its hotline links. Such as chemical industry association (ABIQUIM: http://www.abiquim.org.···