2. The outer diameter of the rib mid-rod mainly includes: ultra-fine mid-rod 6.0mm, ordinary mid-rod 8.0mm, and 10mm, 12mm, 14mm, and 16mm in thick reinforcement.
a. The aluminum rod can only be anodized, not electroplated. Since anodizing can add pigments, its color can be adjusted at will, either red, blue, or other colors; if the number is large, it can be Color specified by the customer.
b. Since wood is not wear-resistant, iron tails, copper tails or black plastic tails will be added to the tail of the wood rod. The black plastic tail is usually called urea tail, which is more wear-resistant, but the urea tail needs to be polished, so it is different from the main body. It is integrated into one, it is difficult to distinguish, and it is easy to be mistaken for black paint on the surface of the wood. Most of the wooden rods are used to make high-end umbrellas.
c. Iron rods and aluminum rods are usually divided into two types, one is its own iron pointed tail. Usually this is a matching umbrella, and the other is a cut tail. The cut tail is added with glue and a straight tail after the finished product is packaged. Various customers like the umbrella tail. Ordinary straight umbrellas use more iron rods. The surface can be electro-zinc, electro-zinc, electro-nickel treatment. Aluminum rods are used more on high-end umbrellas.
d. There are three types of glass fiber rods: snake skin pattern, bright black, and fog black. The tube wall is thick and thin, and an acrylic plastic tail will be added to the tail; there are also cut tails and finished products Then install the plastic umbrella tail at the mantissa. Iron umbrella cap, etc. Fiberglass rods are mostly used on golf umbrellas.
e. The middle stick is divided into automatic middle stick, hand-opening the middle stick, and the hand-opening middle stick has upper and lower bows. If it is a safe drop nest, the upper and lower bows must be in a straight line. , The lower nest must be 90 degrees, that is, when the lower bow is facing the operator, the upper bow is 90 degrees on the right side; the automatic opening of the middle stick only presses the bow down, but not the upper bow.
3. The thickness of the middle rod is: 28T, 30T, 35T, 40T, 45T, 50T, 60T, 70T, 80T, T represents the number and thickness of the material. The higher the T number, the stronger it is, the higher the cost, and most of them are used in high-end umbrellas.
4: Iron rod, aluminum rod, acrylic transparent rod, wood rod, these four are used on straight umbrellas, and short umbrellas are mainly made of iron, aluminum, and two kinds of rods.
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