Structure: It consists of barrel, plunger, piston and hypodermic needle. The hypodermic needle is an optional accessory; the barrel and plunger are made of polypropylene and the piston is made of rubber.
Style: central head type, off-center type and luer lock type;
Function: This product is suitable for subcutaneous, intradermal, intramuscular, intravenous injection, etc., or the use of liquid medicine;
