Zhejiang Alwsci Technologies Co.,ltd. is based in China and lists a range of laboratory consumables and equipment on Global Trade Plaza. The catalog includes certified 2 mL vials with pre-assembled PTFE/silicone septa, EPA/TOC vials and closures supplied as convenience kits compatible with Sievers, Shimadzu, OI Analytical and Teledyne-Tekmar instruments, and barcoded vials offering unique codes with QR or Datamatrix options. The company also offers bonding machines that mechanically attach liners to polypropylene caps in 1 mm to 3 mm thicknesses without adhesives, GL45 safety caps with an integrated PTFE layer and time-strip filter indicator, and screw-neck ND8 vials suited for GC and HPLC instruments from Shimadzu, Varian and Gilson with micro-volume insert options.