As a leading manufacturer of mechanical seals and sealing products in China, Sino-Holding Co., Ltd, with over two hundred staff, in our three factories, are specialized in designing, manufacturing and marketing mechanical seals and sealing products. Founded in 1999, Sino-Holding continue to rapidly grow through our exceptional investments and design development, headquartered in Beijing, have three modern factories in China. Through constant development of more than 10 years, We have formed mechanical seals, Encapsulated o-ring, Silicon carbide products,Wave springs products lines.★ Standard Mechanical Seals We can provide a complete range of standard mechanical seals which could be equivalent to John crane, Eagle Burgmann, Flowserve, Roten, ANGA, AESSEAL, Latty, Roplan, Sealol and US seals. Besides that, We also manufacture and stock many thousands of individual seal designs for specific pumps and applications. mechanical seals to Replace the following Products.John Crane-Type 1, 1B, 2, 6, 6A, 106, 2100, 502, 8-1,8-1T, 9,9B, 8B1, 58U,59U, 58B,59B,9-T,8BT, 9BT, ROO,R10-R50,87,Chesterton-,Dura, Durametallic-RO, ROTT, ARO, BRO, CRO, RA, RAC, 891,491,591etcBurgmann MG series, M2 series, M3 series,HJ92N, M477, H12N,BT-RN, M7N,M74N etcAES-CURC,CONLL, CDSA, Cartex-SN etc All of products are manufactured in our modern factories. First-class equipment, professional and efficient team, large scale low-cost production & inspection facilities could ensure consistency & stability of products. We have also established a completed quality control system, to ensure that the goods are monitored and inspected constantly in the processing of designing, manufacturing. Both seals and components must be inspected prior to dispatch from our factories.