Flange ọkọlọtọ: National ọkọlọtọ GB/T9115-2000, Ministry of Machinery STANDARD JB82-94, Ministry of Chemical Industry ọkọlọtọ HG20595-97HG20617-97, Ministry of Electric Power ọkọlọtọ GD0508 ~ 0509, American ọkọlọtọ ASME/ANSI B16.5, Japanese ọkọlọtọ. JIS/KS (5K, 10K, 16K, 20K), ọkọlọtọ German...
GỤKWUO