School Laboratory 500ml 1000ml 2.8L 5L Plastic Triangular Culture Shake Flask with Graduation

School Laboratory 500ml 1000ml 2.8L 5L Plastic Triangular Culture Shake Flask with Graduation. Medical-Grade PETG Material: Made of medical-grade PETG, safe for food and drug contact, free from Bisphenol A. Electron Beam Sterilization: Sterilized via electron beam, ensuring no DNase, RNase, heat source, or endotoxin. Seamless Blow Molding: One-time blow molding creates a seamless body to avoid surface scars and cell wall rupture. International SBS Standard: Bottle mouth conforms to international SBS standard for quick bioreactor connection. Independent Vacuum Packaging: Vacuum packed individually to prevent cross-infection and ensure ease of use. High Transmittance: Surface finish is mirror-like with permeability close to glass, reducing cell sticking. Optimized 2.8L Design: Optimized bottom design saves space and improves shaker usage rate. Custom Logo Service: Professional OEM/ODM services available with customizable logo types and MOQs.