... different opening shapes, typically as: standard rhombic shape; heavy type Tortoise-shaped expanded metal, also known as hexagonal ... , reinforcement materials, filtration materials and other uses.6.Heavy Hexagon ShapeHeavy Type Hexagon Shaped Expanded Metal, also known ... , baskets, basket and road protection. Oiltanker foot net, heavy machinery and boilers, oil mine, locomotives, ships, such as working ...