Black Screw Caps ND13 made of polypropylene, with thread 13 425. with hole 8, 5 mm with septum Natural Rubber Red/Orange/TEF transparent temperature-resistant from – 40 & deg C to + 120 & deg C, ideal for multiple injections due to limitations in photography and the inevitable differences in good lock re-sealable characteristics Standard fastener for GC and HPLC thickness 1, 3 mm.
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