Structure: It consists of barrel, plunger, piston and hypodermic needle. The hypodermic needle is an optional accessory
Function: This product is suitable for subcutaneous, intradermal, intramuscular, intravenous injection, etc., or the use of liquid medicine;
Supporting injection needle specifications: 0.3, 0.33, 0.36, 0.4, 0.45, 0.5, 0.55, 0.6, 0.7, 0.8, 0.9, 1.1, 1.2mm;