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Yongkang Lianggong Valve Co., Ltd. with more than 30 years experience in valve industry, is a professional manufacturer specializing in cast iron and ductile iron ball valves of DIN,ANSI,JIS,BS,GB standards,ect.what"s more,OEM orders of cast iron ball valves are welcomed.In July 1999,Lianggong passed ISO 9001 Quality Management System certification.on that basis,Lianggong established Pipe Fitting Quality Assurance System In April 2005 and acquired PRC Manufacture License of Special Equipment.Lianggong is also a member of china valve industry Association.
Professional advantages make us outstanding.With aim of High Quality,Continuous innovation,Customers"Confirmatioin,Good Integrity,Lianggogn will be your good choice of safe and economical cast iron ball valves
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