Dear Sir; I am Y.S.Chung,G. maneger of B&J Welding Co..We have leaned from web-site,EC21 that you interested in resistance welding machine and equipment.We are writing to you with a keen desire to do business with you.We know very well the requirements of the automobil industry and shall be able to serve you immediately upon hearing from you. We have pleasure in introduce our products to you. 1.Resistance welding electrodes; -Seam welding wheel(Cu-Cr-Zr,Cu-Ni-Be) -Spot welding tip(Cu-Cr,Cu-Be,Al2O3) -Shank,Holder2.Portable Spot Welding Gun3.Kickless cable,Sub cable,Jumper cable4.Robot Gun