The purpose of plastic expansion pipes:

Used for fastening the connection and installation of various small and medium-sized hanging items. Can be used indoors and outdoors. Avoid using it for lifting heavy objects and heavy equipment to avoid unnecessary losses.

Installation of plastic expansion pipes: Generally, self tapping screws are required. The use of head types is not limited to: countersunk head self tapping screws, round head self tapping screws, large flat head self tapping screws, external hexagonal and internal hexagonal self tapping screws, double head screws, etc. (peripheral accessories: gaskets, screw covers, rubber rings, hooks, etc.) Avoid using quick teeth (sharp wood screws) to prevent the screws from cutting off the expansion pipe body when forced in. It is recommended to install and use hardened self tapping screws to exert good friction and achieve tightening effect.

The raw material for plastic expansion pipes is generally soft adhesive HDPE (polyethylene), which is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of a-olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance, good chemical stability, and can withstand the erosion of most acids and alkalis. Insoluble in general solvents at room temperature, with low water absorption and excellent electrical insulation performance. Or PA6, PA66 (nylon is the trade name for polyamide fiber, also known as Nylon). Its English name is Polyamide (PA for short). Its basic component is aliphatic polyamide connected by amide bond - [NHCO] -. Wait for injection molding. Its characteristic is good toughness. Not easy to crack, with strong load-bearing capacity. Nylon material is one of the five major varieties used in engineering plastics.

Huanjie Expansion Tube Style and Classification: There are generally two types of expansion tubes commonly used in expansion tube specifications: straight through expansion tubes and fish shaped expansion tubes. With the expansion and demand of market applications, the styles of expansion tubes are becoming more and more extensive, and their functions are becoming more obvious and powerful. There are various styles of Huanjie's professional products, including ceiling gypsum expansion pipes (aircraft type expansion pipes), and multi-functional knotted expansion pipes for air wall hollow bricks. The size of the expansion tube of the ring is M4-M16 in diameter, and the length ranges from 20mm to 160mm. The styles include straight expansion pipes, fish shaped expansion pipes, conical expansion pipes, flange expansion pipes, straight extended expansion pipes, knotted expansion pipes, American expansion pipes, toothed expansion pipes, driven fast expansion pipes, double fin fish shaped expansion pipes, nylon expansion pipes, etc.

材质：采用PE料制成。
颜色：白、灰
Material:Made of PE
Color:White、Grey.