R & D base

                            Research and
                            development base

                            R & D Center

                            Research and
                            development base

                            Process route

                            Process route

                            Each batch of raw materials has undergone physical and chemical experiments

                            The heating temperature of each bar is strictly controlled

                            Metallographic analysis was carried out for each batch of heat treatment

                            Every chain rail link has been inspected

                            Each chain has a unique code for traceability

                            情趣萝天堂