| 摘要 |
<p>Pointed tubular plastic pipette tip has an open top for pushing onto a pipette and consists of at least two diff. materials. The tip may have a jacket with a top collar of diff. material. An external collar may be of diff. colour and harder material, or an internal collar of softer or more flexible material than the jacket. The jacket may have an upper end of softer or more flexible material, or may have outer and inner layers of diff. material. The materials used may be e.g., polypropylene, polyethylene or PTFE, and one material may be irradiation-hardened after moulding. #CMT#USE/ADVANTAGE : #/CMT# Allows colour coding or the use of particular materials to meet specific requirements, e.g, to improve sealing, emptying or durability properties.</p> |
