The phrase "welded seams" refers to joining two pieces of material together by melting them and combining them, creating a strong and secure bond. Full definition
Stainless steel construction with fully seal welded seams makes the conveyor chute easy to clean. (ftiinc.org)
This lightweight rain poncho is breathable and convenient, it's also super affordable.This ultralight rain poncho is made from 15 mm EVA material with welded seams for ultra durability. (geekwrapped.com)
Constructed of dual - coated 70D Nylon Ripstop with welded seams, and closing watertight with a dual ziplock seal, the AquaRoo keeps your phone, ID, currency, bank cards and other small indispensibles safe, dry and close at hand. (amazon.com)