Changhong Welding Material Co. is at present a large welding material manufacturer both in China and throughout the world. We are ISO9001:2000 certified company and our products have been approved by the classification societies of eight countries, including CCS, LR, ABS, BV, DNV, GL, KR and NK.Our products are exported to more than 60 countries around.You are welcome to inquire our products, please contact MOB: +86 18611143667 Email: rockyli.China at gmail dot com