2.Our Advantage: Manufacturing Advantage: We have more than 20 years experience in anchor chain production. Our factory is ISO9001 approval, OSHMS18001 approval, ISO14001 approval, API approval and type approval by all IACS members. Advantage manufacturing facilities: Advanced program-controlled chain production line; Automatic heat treatment machine; Automatic shot blasting machine. 3.Quality Control: Manufacturing process quality control from raw material to final product. Whole set drawing approved by all IACS members; Material Fatigue Test on request; Stress Analysis on request; Stress actual test on quest. Magnetic power testing, ultrasonic testing, and fluorescent penetrant inspection. Load test machine up to 4000Ton. 4.Thirty Party Certificate: Lloyd's Rigister of Shipping (LR) American Bureau of Shipping (ABS) Det Norske Veritas (DNV) Germanischer Lloyd (GL) Bureau Veritas (BV) Korean Register of Shipping (KR) Nippon Kaiji Kyokai (NK) Registro Ltaliano Navale Group (RINA) China Classification Society (CCS) Russian Maritime Register of Shipping (RMRS) Indian Register of Shipping (IRS) Croatian Register of Shipping (CSR) You have questions about our products or would need an individual advice? Just contact us: Aohai Anchor Chain Co.,Ltd