This is a screw for coal unloading that obtained new technology certification in 2012.
For this product, AR400, a high-strength steel is used for its blades and its durability is greatly improved
by applying wear-resistant coating to almost the entire section of the product.
This product completely replaces the current imported products and was delivered to Korea South-East Power,
proving its excellent performance. In the future, we will replace AR 400 by hard facing of general steel plates.