1. Manufacturing technology of marine chain: material inspection, heating bending (ring weaving), welding, deburring, pressing (shaping), heat treatment load test (measuring the dimension of chain link), rolling (surface treatment), final inspection, finished product packaging, dipping and warehousing.

2. Manufacturing process of mooring chain: material inspection, heating bending (ring weaving), welding, deburring, pressing (shaping), rolling pre-inspection (flaw detection), long chain (rework) heat treatment (sending verification samples), tensile breaking, rolling, flaw detection, final inspection, packaging, dipping and delivery.