WEIFANG 100TONG CASTING CO.,LTD STARTED YEAR 2002. NOW WE HAVE FIVE BRANCHES: Weifang 100TONG Casting Co Ltd ，Shandong 100TONG Valve Co Ltd,Reachtop Piping Products Co.,Ltd,SEVENS PIPING PRODUCTS CO.,LTD And NOW FACTORY BUILDED FROM 2024.07.WE SPECIAL FOR FM UL VDS GROOVED FITTINGS,FM UL VALVES AND FM UL PIPE HANGERS