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TOBO GROUP  

TOBO International Trading(Shanghia)Co.,Ltd       Tianda Oil Pipe Co., Ltd

TOBO Pipeline Equipment Co.,Ltd        TPCO & TISCO Pipe(Tianjin)Co.,Ltd.                        

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TOBO GROUP  

TOBO International Trading(Shanghia)Co.,Ltd       Tianda Oil Pipe Co., Ltd

TOBO Pipeline Equipment Co.,Ltd        TPCO & TISCO Pipe(Tianjin)Co.,Ltd.                        

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china latest news about What are the pressure-temperature rating standards for flanges?
On March 25, 2026
Common flange pressure-temperature rating standards are as follows: ASME B16.5 (American System): Steel flanges are available in seven pressure ratings, Class150, 300, 400, 600, 900, 1500, and 2500. The standard establishes a table of pressure-temperature ratings based on different materials, ...