"Three defenses" have different meanings in different fields. According to Baidu Baike, "three defenses" means "nuclear, biological, and chemical defense". In the electronics industry, "three defenses" refer to "anti-mold, anti-damp, and anti-salt spray". In agriculture, "three defenses" mean "drought control, flood control, and wind control". In industry, "three defenses" refer to "anti-freeze, anti-slip, and anti-toxicity". In construction, "three defenses" mean "waterproofing, fireproofing, and earthquake resistance". "Three defense" tarpaulin is different from the "three defenses" mentioned above. Three defense tarpaulin mainly means anti-aging, waterproof, and anti-mildew. Rainproof tarpaulin not only requires "three defenses" but also fire and corrosion resistance. It is required to withstand a water pressure value of ≥2000MM water column, withstand a cold temperature of -20℃, and pass the first level of mildew resistance test and have a flame retardant rating of V-2 or above.
The current comparison of tarpaulin is mainly made of polyethylene, which greatly improves its performance. It is widely used in outdoor tents and carports in daily life.
It has stronger puncture resistance, corrosion resistance, and anti-aging properties, and has a long service life.
It can be recycled and is completely environmentally friendly.
Based on good waterproofing, it also has good heat absorption and insulation functions. Regardless of whether it is rainy or sunny, it can provide good cover. If you stand under the tarpaulin and feel the sunlight shining directly into your eyes, it means that the sunshade and rain cover effects are not good.
The warp and weft density of the tarpaulin is large, the toughness is strong, and the surface is smooth and soft with a comfortable touch.
The more water pressure per square centimeter can be endured, the better the quality.
Tarpaulin is an auxiliary tool for railway freight cars, divided into railway tarpaulin and self-purchased tarpaulin according to property rights. Self-purchased tarpaulin is tarpaulin purchased and used by the consignor.
Tarpaulin is only used for covering damp and flammable goods or other goods that need to be covered by a tarpaulin during open car transportation. Toxic, corrosive, and polluting goods cannot use railway tarpaulins. When covering goods that are easy to damage the tarpaulin, the loading unit must take protective measures, and the protective materials are provided by the consignor.
When railway tarpaulins cannot meet the transportation needs of the consignor's goods, the consignor can purchase self-provided tarpaulins. Self-provided tarpaulins cannot be rented out for business purposes.
Railway tarpaulins cannot be loaned or used for other purposes. When discovered, they shall be corrected immediately, and the tarpaulin extension fee shall be charged according to the regulations.
The tarpaulin used for loading must be of good quality, with complete tarpaulin ropes, intact and clear labels and numbers. Tarpaulins cannot be used as reinforcing materials for loading. Railway tarpaulins must not be mixed with self-provided tarpaulins. The tarpaulin cover should comply with the tarpaulin cover standard regulations.
The special railway and railway special line transportation agreement shall include the handover, use, storage, return, extension fee collection, compensation for damage or loss of railway tarpaulins, etc.
Tarpaulins for truck and train transportation;
Cover for outdoor warehouse storage goods;
Temporary grain storage and various crop rain cover;
Temporary work sheds for construction sites, electric power construction sites and other sites;
Covers for various machine equipment.
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