When purchasing plastic steel doors and windows, avoid cheap or low-quality options. These products may seem cost-effective at first but can lead to long-term problems such as poor performance and durability.
Focus on the quality of the glass and hardware. The glass should be flat, clear, and free from bubbles or water marks. It should not come into direct contact with the plastic frame, and instead, a properly installed sealing strip should fill any gaps. The hardware must be complete, correctly positioned, securely installed, and operate smoothly and flexibly.
The surface of the door and window should be smooth, even, and free from cracks or broken welds. The sealing strip needs to remain flat without curling or deep grooves, and it should be odorless. When closed, there should be no visible gap between the sash and the frame.
All parts should be connected seamlessly without visible screws. This ensures both aesthetics and structural integrity.
Sliding doors and windows should open and close effortlessly with a soft motion, and they should not produce dust or debris during use.
High-quality plastic steel doors and windows should have reinforced steel linings embedded within the frames and sashes for added strength and stability.
The glass must be flat and firmly installed, ensuring that it does not touch the plastic profile directly. Avoid using glass glue if possible. For double-glazed units, the space between the panes should be completely sealed, free from dust and moisture.
All moving parts, such as hinges and latches, should close tightly and function smoothly without sticking or resistance.
It's important to note that genuine plastic steel doors and windows are manufactured in controlled factory environments using professional equipment. They should never be assembled or produced on-site, as this can compromise their quality and performance.
Advantage of Railway Concret Sleeper:
Also called :Concrete Sleeper,Railway Concrete Sleeper,Railway Concrete Slab Sleeper,Concret Sleeper For Metro
High stability
High precision of level
High requirements to track base
Less maintenance
Simple structure
Lower cost and more convenient of transportation of slab sleeper
|
Type |
Axle Load |
The G.W. density per year |
The highest passenger train speed |
The highest freight train speed |
Rail Type |
Gauge |
Min. curve radius |
Length |
Width | Height | Weight |
Rail base slope |
||
|
End |
center | End | center | |||||||||||
| (t) | (Mt.km/km) | (km/h) | (km/h) | (kg/m) | (mm) | (m) | (mm) | (mm) | (mm) | (kg) | ||||
| YII-F | 25 | 25~50 | ≤120 | ≤80 | 60/50 | 1435 | ≥300 | 2500 | 294.5 | 244.5 | 230 | 165 | 251 | 1:40 |
| XII | 25 | 25~50 | ≤160 | ≤80 | 60/50 | 1435 | ≥300 | 2500 | 306.5 | 246.5 | 235 | 175 | 285 | 1:40 |
| IIZQ-C | 25 | 25~50 | ≤160 | ≤80 | 60/50 | 1435 | ≥300 | 2500 | 274.5 | 274.5 | 230 | 221.5 | 280 | 1:40 |
| IIIa | 25 | >30 | 200 | 90 | 70/60 | 1435 | ≥300 | 2600 | 320 | 280 | 260 | 185 | 370 | 1:40 |
| IIIb | 25 | >30 | 200 | 90 | 70/60 | 1435 | ≥350 | 2600 | 320 | 280 | 235 | 185 | 370 | 1:40 |
| IIIc | 25 | >30 | 200 | 90 | 70/60 | 1435 | ≥300 | 2600 | 320 | 280 | 260 | 185 | 370 | 1:40 |
| IIIQ | 25 | 25~50 | 120~160 | 90 | 75/60 | 1435 | ≥300 | 2600 | 320 | 280 | 240 | 195 | 370 | 1:40 |
| IIIQa | 25 | 25~50 | 200 | 90 | 60/50 | 1435 | ≥300 | 2600 | 320 | 320 | 240 | 240 | 406 | 1:40 |
| IIIQc | 25 | 25~50 | 200 | 90 | 60/50 | 1435 | ≥300 | 2600 | 320 | 320 | 240 | 240 | 406 | 1:40 |
| KZ | 25 | 25~50 | ≤160 | ≤80 | 60/50 | 1435 | ≥300 | 2500 | 542 | 542 | 205 | 155 | 548 | 1:40 |
| 701 | 25 | 25~50 | 200~250 | 60 | 1435 | ≥300 | 2400 | 288 | 255 | 190 | 1:40 | |||
|
Wenfu railI |
25 |
25~50 | ≥200 | 60 | 1435 | ≥300 | 2400 | 288 | 205 | 189 | 1:40 | |||
| SK-1 | 25 | 25~50 | 200~250 | 60 | 1435 | ≥300 | 2400 | 314 | 225 | 227 | 1:40 | |||
| SK-2 | 25 | 25~50 | 200~250 | 60 | 1435 | ≥300 | 2400 | 314 | 275.5 | 242 | 1:40 | |||
| Plate 1 | 1435 | |||||||||||||
| Plate 2 | 1435 | 1:04 | ||||||||||||
Concrete Sleeper,Railway Concrete Sleeper,Railway Concrete Slab Sleeper,Concret Sleeper For Metro
TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com