在线国产视频一区I中文字幕在线观看不卡I亚洲免费在线视频I午夜影院一区I五月天婷婷综合I美女视频黄频

CN / EN

What is standard of Japanese standard flange ball valve

發布時間:2022-07-14瀏覽量:2003

The Japanese standard flanged ball valve standard is Japan's original JIS standard (Japanese Industrial Standard). The pressure of the Japanese standard flanged ball valve is divided into 10K, 20K, etc., many of which are made of bronze. Compared with the national standard, the requirements are more high.

     Japanese flanged ball valves are not only imported products, but are actually more domestically produced, that is, the Japanese Industrial Standards (JIS) are used for valve production and inspection during domestic production. In addition to domestic use, qualified products will also be exported.

日標高平臺法蘭球閥