Our factory produces high-quality 18mm screw clear headspace vial metal caps designed for use with GC/GCMS instruments. Our caps are specifically designed to fit securely onto the vials to prevent any leakage or contamination of samples during analysis. Made of durable materials, they provide a reliable seal for your samples, ensuring accurate and precise measurements. With our years of experience and commitment to quality, we take pride in producing products that meet our customers' needs and expectations. So, if you're looking for reliable, cost-effective solutions for your laboratory, our 18mm screw clear headspace vial metal caps are the perfect choice. Contact us today to learn more about our products and services!