Top Scaffolding Coupler Manufacturer in China EK Scaffolding is a top Chinese manufacturer and global exporter of high quality scaffolding couplers and fittings. Built with premium Q235 and Q355 steel, our product range includes drop forged coupler, pressed coupler, and cast iron couplers engineered to meet strict international standards, including BS1139, EN74 (Class A & B), and JIS. With thousands of containers shipped worldwide to over 30 countries—including the UK, Germany, France, Norway, Australia, and across Europe—we supply high-durability right angle coupler, swivel coupler, putlog coupler, beam coupler, board retaining coupler, and sleeve couplers.