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MB1-Single Block Ventile
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BB1-Flange Block a Bleed Ventile
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BB2-Monoflange Single Block a Bleed Ventile
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BB3-Double Blockventile
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BB4-Single Block a Bleed Ventile
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DBB1-Flange Double Block a Bleed Ventile
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DBB2-Groussbore Bolted Double Block a Bleed Ventile
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DBB3-Monoflange Double Block a Bleed Ventile
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DBB4-Double Block a Bleed Ventile
