Application: Hi-Sea Marine supply all kinds of marine anchor chains with ABS, BV, DNV·GL, NK,LR,KR, RINA, CCS approvals. This anchor chains is flash butt welded. The common surface treatment is bitumen painted and hot dip galvanized. Compared with bitumen paint, hot dip galvanized surface is more corrosion-resistant. Usually the small diameter anchor chains with galvanized surface, and the big diameter anchor chains with bitumen paint.