H41H-16C升降式止回阀H41H-16C
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H41H-16C升降式止回阀H41H-16C
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H42H-16C铸钢立式止回阀H42H-16C
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HQ11X-16Q丝扣球型止回阀HQ11X-16Q
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H71W-16PH71W-16P对夹升降式止回阀
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H74F46-10CH74F46-10C对夹式衬氟止回阀
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H44T-16Q旋启式止回阀（带重锤）H44T-16Q
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HC41X-16QDN50消声止回阀
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H14W-16PH14W-16P内螺纹止回阀
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H12W-16PH12W-16P丝扣止回阀
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HH47X-10/16QHH47X蝶式缓闭止回阀
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H76X-16PH76对夹止回阀
面议
H44W-64PH44W不锈钢旋启式止回阀
面议