配对法兰及排污或排气阀。
HR-FT-B1F1NT,HR-FT-B1F1NS,HR-FT-B1F1IT,HR-FT-B1F1IS,HR-FT-B1F1DT,HR-FT-B1F1DS,
HR-FT-B1F2NT,HR-FT-B1F2NS,HR-FT-B1F2IT,HR-FT-B1F2IS,HR-FT-B1F2DT,HR-FT-B1F2DS,
HR-FT-B1F3NT,HR-FT-B1F3NS,HR-FT-B1F3IT,HR-FT-B1F3IS,HR-FT-B1F3DT,HR-FT-B1F3DS,
HR-FT-B1F4NT,HR-FT-B1F4NS,HR-FT-B1F4IT,HR-FT-B1F4IS,HR-FT-B1F4DT,HR-FT-B1F4DS,
HR-FT-B1B1NT,HR-FT-B1B1NS,HR-FT-B1B1IT,HR-FT-B1B1IS,HR-FT-B1B1DT,HR-FT-B1B1DS,
HR-FT-B1B2NT,HR-FT-B1B2NS,HR-FT-B1B2IT,HR-FT-B1B2IS,HR-FT-B1B2DT,HR-FT-B1B