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Burettes – with PTFE Detachable Stopcocks in Schellbach Stripe Class AS (BU.23)
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Burettes – with PTFE Key Stopcock in (Schellbach Stripe) Class AS (BU.20)
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Burettes Rotaflow Key (With PTFE Needle Valve) (In Schellbach Stripe) Class As (BU.17)
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Burettes with PTFE Detachable Stopcock Individual Certificate (BU.22)& Batch Certificate (BU.22A)