East China University of Science and Technology Huachang Polymer Co., Ltd. received a contract from a foreign company and recently successfully developed a concrete-unsaturated polyester resin "Jianjian-0293H". The material is phthalic unsaturated polyester resin and is specially used for the production of polyester concrete. It is characterized by its high reactivity, good infiltration of fillers, low resin content, excellent mechanical properties, short gelation time, and faster post-cure rate. Due to its high mechanical strength, the resin has excellent curing properties and high cost performance. After being used in formulating concrete, it can produce various types of concrete pipes, plates, tanks, tanks, floors, gutters, and architectural decorative parts. The application prospects are broad.
Stainless Steel Mushroom Head Square Neck Carriage Bolts have a smooth, rounded head. They are used in wood connections utilizing the square neck under the round head which will sit into the hole to prevent the head from turning. we have various types of products for you to choose. Also we accept customization according to your request.
Cup head square neck bolts, also known as carriage bolts, are a type of fastener with a unique head design. The head of these bolts is domed or rounded, resembling a cup, hence the name "cup head." The square neck refers to the square-shaped section just below the head. Cup Head Square Neck Bolts,Cup Head Square Neck Bolt,Step Bolt,Stainless Steel Step Bolts Taizhou Wanluo Hardware Products Co., Ltd. , https://www.wlhardware.com
These bolts are commonly used in applications where a smooth and finished appearance is desired, as the rounded head of the bolt sits flush against the surface it is being fastened to. The square neck prevents the bolt from rotating when tightening, providing stability and preventing the bolt from loosening over time.
Cup head square neck bolts are typically made of steel and are available in various sizes and lengths to accommodate different applications. They are commonly used in woodworking, construction, and automotive industries, as well as in furniture assembly and outdoor structures like fences and decks.