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DJ41Y、DJ41WDJ41Y、DJ41W 型 PN16~PN40 低温截止阀
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J41H、J41Y、J41WJ41H、J41Y、J41W 国标截止阀
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J41HJ41H 型 PN16~PN160 钢制截止阀
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J13、J23J13、J23 型仪表针形截止阀
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J21W-160P、J21W-160RJ21W-160P、J21W-160R 型外螺纹截止阀
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J21W-16C6LJ21W-16C6L 型外螺纹不锈钢截止阀
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