Here is a rewritten and improved version of the provided content in English, formatted as a real-time market update with added context to meet the 500-character requirement:
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**Steel Market Update – April 5, 2025**
Below are current steel prices from various suppliers across different product types. Prices are listed in Yuan per ton, with changes compared to yesterday, last week, and the previous day’s closing.
- **General Line (Φ6.5mm Q235)**: Handan Steel at 5,480 yuan/ton (no change from yesterday), up 240 yuan from last week.
- **Common Line (Φ10mm Q235)**: Stone Cross at 5,480 yuan/ton (stable), +240 from last week.
- **High Line (Φ6.5mm Q235)**:邯Steel at 5,560 yuan/ton (no change), +310 from last week.
- **High Line (Φ6.5mm Q235)**: Xingtai Steel at 5,660 yuan/ton (unchanged), +340 from last week.
- **Rebar (Φ12mm HRB335)**: Jigang at 5,400 yuan/ton (+70 from yesterday), +320 from last week.
- **Rebar (Φ14mm HRB335)**: Jigang at 5,450 yuan/ton (+200), +420 from last week.
- **Rebar (Φ16–25mm HRB335)**: Jigang at 5,350 yuan/ton (+150), +370 from last week.
- **Thread Steel (Φ16–25mm HRB335)**: Laiwu Steel at 5,220 yuan/ton (no change), +220 from last week.
- **Grade III Rebar (Φ16–25mm HRB400)**: Jinan Steel at 5,530 yuan/ton (+130), +440 from last week.
- **Hot Roll (2.5*1250*c Q235)**: Handan Steel/Taigang at 5,870 yuan/ton (+50), +120 from last week.
- **Cold Rolled Sheet (1.0*1250*c SPCC)**: Benxi Steel at 6,600 yuan/ton (no change), +60 from last week.
- **Medium Plate (10mm Q235)**: Sky Steel at 6,500 yuan/ton (+100), +100 from last week.
- **Puzhong Plate (8mm Q235)**: Tiangang at 6,990 yuan/ton (+200), +250 from last week.
- **Low Alloy Plate (12mm Q345)**: Jinan Steel at 6,530 yuan/ton (no change), +500 from last week.
- **Seamless Pipe (Φ108*4.5 20#)**: Smoke Pipe at 7,140 yuan/ton (+90), +90 from last week.
- **Welded Pipe (1 inch Q235)**: Youfa/Hengshui at 5,480 yuan/ton (+130), +230 from last week.
- **I Beam (25# Q235)**: Haicheng at 5,400 yuan/ton (+100), +280 from last week.
- **Channel Steel (16# Q235)**: Jinan Steel at 5,450 yuan/ton (+100), +350 from last week.
- **Angle Steel (50*50# Q235)**: Aluminum Steel at 5,550 yuan/ton (no change), +50 from last week.
Prices remain relatively stable overall, with minor fluctuations across different grades and regions. Buyers are advised to monitor daily updates for better decision-making.
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Telescoping Hydraulic System
A telescoping hydraulic system is an essential component of a Tower Crane. It allows the crane to extend and retract its boom, enabling it to reach different heights and distances. This system consists of several hydraulic cylinders, valves, and hoses that work together to provide the necessary power and control.
The main hydraulic cylinder in the telescoping system is responsible for extending and retracting the boom. It is typically a double-acting cylinder, meaning it can generate force in both directions. This cylinder is connected to the base of the crane and extends vertically to support the boom.
To control the movement of the hydraulic cylinder, various valves are used. These valves regulate the flow of hydraulic fluid into and out of the cylinder, allowing for precise control of the boom's extension and retraction. The valves are typically operated by the crane operator using a control panel or joystick.
The hydraulic system also includes hoses that connect the cylinders and valves. These hoses transport the hydraulic fluid, which is typically oil, between the different components. The hoses must be durable and able to withstand high pressure to ensure the safe and efficient operation of the crane.
In addition to the main hydraulic cylinder, there may be secondary cylinders in the telescoping system that provide additional support and stability to the boom. These cylinders are typically smaller and are used to fine-tune the position and angle of the boom.
Hydraulic Pump Station,Telescoping Cage,Tower Crane Cylinder,Axial Plunger Pump,hydraulic pump unit
SHEN YANG BAOQUAN , https://www.bq-cranes.com