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GB/T596-1983船用外螺紋青銅截止止回閥
GB/T596-1983船用外螺紋青銅截止止回閥 Marine bronze male thread stop ch...
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GB/1241-1983船用外螺紋鍛鋼截止止回閥
GB/1241-1983船用外螺紋鍛鋼截止止回閥 Marine forged steel male thread s...
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船用法蘭鑄鐵單排吸入截止閥箱、截止止回閥箱
GB/T1854-1993船用法蘭鑄鐵單排吸入截止閥箱 Marine flanged cast Iron sin...
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船用法蘭鑄鋼直角式舷側截止止回閥
GB/T1853-1994船用法蘭鑄鋼舷側截止止回閥 Marine flanged cast steel over...
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船用法蘭鑄鋼直通型舷側截止止回閥
GB/T1853-1994船用法蘭鑄鋼舷側截止止回閥 Marine flanged cast steel over...
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外螺紋直通型青銅船用截止閥
GB/T595-1983船用外螺紋青銅截止閥 Marine bronze male thread stop valve ...
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外螺紋直通型鍛鋼船用截止閥
GB/T594-1983船用外螺紋鍛鋼截止閥 Marine forged steel male thread stop ...
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外螺紋直角型青銅船用截止閥
GB/T595-1983船用外螺紋青銅截止閥 Marine bronze male thread stop valve ...
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外螺紋直角型鍛鋼船用截止閥
GB/T594-1983船用外螺紋鍛鋼截止閥 Marine forged steel male thread stop ...
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船用法蘭直通型鑄鐵截止閥
GB/T590-1993船用法蘭鑄鐵 截止閥 Marine Cast Lron Flanged Stop Valves G...
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船用法蘭直通型鑄鐵截止閥、船用截止止回閥
GB/T590-1993船用法蘭鑄鐵截止閥 Marine Cast Lron Flanged Stop Valves GB...
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船用法蘭式直角型青銅截止閥、截止止回閥
GB/T587-1993船用法蘭青銅截止閥 Marine Bronze Flanged Stop Valves GB/T5...
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