levin dot liuhb at gmail dot com /Jonsteel Pipe and Fitting Co., Ltd mainly manufactured pipes, flanges and fittings in China. Our products:
1,Seamless and Welded Steel Pipes for water, gas and oil pipelines and other construction- Specification API 5L Materials:Gr.A,Gr.B,X-42,X-46,X-50,X-52,X-56,X-60,X-65.Specification:AS***269,A511,A586,A312,A213-materials-304,304L,321,316,316L,316Ti,317,317L,310,310S,347H,405,410,430,904L.
2,Seamless Tube for Boiler and Heat Exchangers-ASME SA179,SA192,SA106,SA269,...
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