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海北法蘭三通球閥 Flanged tees ball valve Q44F(L型)
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海北法蘭三通球閥 Flanged tees ball valve Q45F(T型)
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海北法蘭連接固定式鍛鋼球閥 Fixed forged steel flange connection ball valve Q3（6/7/8/9）47F(N/PPL/Y)
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海北全焊接固定球閥 Welded structure trunnion type ball valve Q3（6/7/8/9）67F(N/PPL/Y)
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海北固定式鑄鋼球閥 Fixed cast steel type ball valve Q3(6/9)47F(PPL/H)
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海北浮動式全焊接球閥Floating fully welded ball valve Q3(6/7/8/9)61F(Y/N/PPL)
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海北浮動式鍛鋼球閥 Forged steel floating ball valve Q3(6/9)41F(Y/N/PPL)
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海北浮動式鑄鋼球閥 Cast steel floating ball valve Q3(6/9)41F(Y/N/PPL)
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海北球閥Ball valve
