The Pre-Shipment Inspection (PSI) is one of many types of quality control inspections conducted by Shenzhen Runfree Technology Co., Ltd.. This inspection is done according to standard QC Test, or based upon customer requirements. Samples are selected and inspected for defects at random, according to these standards and procedures. For us, Pre-Shipment Inspection is an important step in the quality control process and is the method for checking the quality of disposable e cig before they are shipped.

Runfree is a factory with advanced technology in the field of best disposable e cig. The vape pen for sale series has become a hot product of Runfree. Runfree e cig vape pens is innovatively developed. The development is conducted by our R&D team who try to find special metal coatings that can prevent fingerprints and other residues. This product does not warp, curl or cup. And it is naturally resistant toward mold, mildew, and microorganisms even in the consistently 'wet' weather.

We invest in sustainable growth with environmental consciousness. Sustainability is always integral to how we design and build new facilities as we plan for our long-term growth. Get quote!