... of 200,100 square meters, have more than 1,800 sets of advanced quipment and over 3,100 highly skilled employees ... of standard chains and special chains, such as A or B series chains, roller chains, driving chains, conveyor chains, hoisting chains, agricultural ... of standard chains and special chains, E. G. A or B series chains, automobile chains, stainless steel chains, combine harvester chains, heavy ...