... maximum tube capacity when closed Integral nap shut cap pp tubes,plastic mould• Suitable for 0.5ml ... maximum tube capacity when closed• Integral nap shut cap• Available with flat or domed frosted capswe supply ... mould, stamping mould,alloy mould... plastic materials includes:PP, PE, ABS, PMMA...and our mould tolerance ... HASCO,DME ... standardscontact for details pp tubes,Microcentrifuge Tubes with cap