... , copper, brass shape: square ,round, ring ect Heteng Metal Filter Equipment (free sample)Metal Filters media filtersfor the filtration of air ... of the customers.Anping County Heteng Metal Wire Mesh Product Co., Ltd. Nanjing Branch isone of largest manufacturer and exporter of Wire ... and sales department,and also the top Management .As for Equipment,we have About 60 sets of machines. And we are ...