... Ltd established in 1991, we have 5 subsidiaries in china and have 6 subsidiaries abroad;2. we covering a production area ... meters, have more than 1,800 sets of advanced equipment and over 3,100 highly skilled employees, the annual production capacity ... B series chains, driving chains, conveyor chains, dragging chains, agricultural chains and so on;4. we have obtained ISO9001, ISO14001, ISO16969, AAA ...