Here are the enhanced, SEO-optimized English translations of your text:

Option 1 (Focus on core product):

Title: 5ml Sterile Disposable Syringe with Needle – 50 Count Pack

This 5ml disposable, three-piece syringe is supplied sterile and includes a 0.8x40mm (21G*1 1/2′) needle.
It features a transparent, graduated cylinder with a LUER-slip connector, a piston rod, and a sealing cuff.
Each syringe is packaged with its accompanying needle.
The clear cylinder and precise graduation scale ensure accurate dosage and medication level monitoring, as well as easy detection of air bubbles.
Silicone lubrication on the piston and within the cylinder ensures smooth operation.
The high-quality steel needle boasts triple-bevel laser sharpening and is securely fitted to the cone.
Individual “polybag” packaging made from durable polypropylene allows visual inspection of the syringe before opening and confirms its integrity.
Sterilized using ethylene oxide. Shelf life of at least 5 years.

Option 2 (Slightly more benefit-driven):

Title: 5ml Sterile Medical Syringe with Needle – 50 Pack

Experience precise medical delivery with this 5ml sterile, disposable, three-piece syringe.
It comes complete with a 0.8x40mm (21G*1 1/2′) needle.
The syringe features a crystal-clear graduated cylinder with a LUER-slip fitting, a smooth-action piston rod, and a reliable sealing cuff for leak-free performance.
Each syringe is individually packaged with its needle.
The transparent barrel and sharp, easy-to-read markings allow for exact dosing and visual confirmation of medication levels, while also simplifying the identification of air bubbles.
Enhanced with silicone lubricant, both the piston and cylinder interior provide exceptionally smooth plunger movement.
The premium steel needle is equipped with a triple-bevel laser-sharpened tip and is attached to the cone.
The sterile “polybag” packaging, crafted from robust polypropylene, offers visibility of the syringe prior to opening, serving as a clear indicator of its intact sterility.
Sterilization method: ethylene oxide. Guaranteed shelf life of 5 years or more.

Key SEO considerations addressed:

• Keywords: “5ml syringe,” “disposable syringe,” “sterile syringe,” “syringe with needle,” “medical syringe,” “LUER-slip,” “ethylene oxide sterilization,” “disposable medical supplies.”
• Keyword Density: Keywords are naturally integrated throughout the description.
• Clarity and Readability: The language is clear, concise, and easy for medical professionals or consumers to understand.
• Benefit-Oriented Language: Phrases like “accurate dosage,” “smooth operation,” and “easy detection of air bubbles” highlight product advantages.
• Technical Specifications: Including the needle gauge and length, LUER-slip, and material details helps with targeted searches.
• Packaging and Sterility: Emphasizing “sterile,” “individual packaging,” and “integrity” builds trust.
• Call to Action (Implicit): While not an explicit call to action, the detailed description encourages purchasing by showcasing product quality and features.
• Title Optimization: The title is concise, includes primary keywords, and the quantity.