做彩票的为什么要不断拉人

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linkman: Manager Yang

linkphone: 15033110058

QQ: 1331515152

address: South of Wangcun Village, Qiji Town, Wuji County, Shijiazhuang, Hebei

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Thickened arch quilt

Thickened arch quilt

拱棚保温被 Type: Arched quilt

极佳 Quality: Excellent

Product_introduction

加厚拱棚保温被

Comparison of different greenhouse insulation quilts

Greenhouse needle-knitted felt is made of old broken thread and other materials after a certain treatment and is re-pressed. It has a low cost and good thermal insulation performance. Needle-knot felt is made of needle-knitted felt as the main cold-proof and heat-insulating material. This kind of thermal insulation is heavier than the composite thermal insulation and has better windproof performance and thermal insulation performance. Its major disadvantage is its poor water resistance. However, if it is indicated that an Oxford rainproof cloth can be used, it can be made into a rain-proof insulation quilt. Before the greenhouse insulation is stored, it needs to be dried in a large area, and it can only be stored after drying. Composite insulation is made of 2 mm thick honeycomb plastic film, 2 layers of non-woven fabric, and chemical fiber cloth. It has the advantages of light weight and good thermal insulation performance, and is suitable for mechanical winding. Its disadvantage is that the honeycomb plastic film and non-woven fabric inside are easily broken after being rolled and rolled. Acrylic cotton insulation is made of acrylic cotton and space cotton as the main material for cold protection, non-woven fabrics are used for fabrics, and stitching is used. It can meet the requirements in terms of thermal insulation performance. Greenhouse thermal insulation quilts have poor durability. The non-woven fabric will be damaged quickly after being rolled and rolled. In addition, because it is made by suture method, when it rains, water will seep through the eye of the needle.


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