色欲17c人妻精品偷拍,国产口爆a深喉在线观看,午夜福利伦伦电影理论片2021,国产精品片48区乱婬人成人,欧美搡BBBBBB搡BBBBBB√一

LJ rigid foam polyurethane composite cross-linked polythylene mat

PRODUCTS > LJ Floor insulation series > LJ rigid foam polyurethane composite cross-linked polythylene mat

LJ rigid foam polyurethane composite cross-linked polythylene mat

The LJ rigid foam polyurethane composite cross-linked polythylene mat produced by our company is bonded together by rigid foam polyurethane and polyethylene closed-hole foam through infrared light wave technology, and the surface is composite glass fiber felt, the composite mat made of vibration attenuation, sound insulation and heat preservation.


LJ rigid foam polyurethane composite cross-linked polythylene mat is mainly used on the floor of the building in the heat insulation project of residential building floor slab. In application, it has the characteristics of heat insulation, noise reduction and sound insulation, moisture-proof and antibacterial, health and environmental protection, simple construction technology, etc.

Damping principle

When people step on the floor slab or generate vibration in other ways, the vibration will spread through the Sound Bridge generated by the rigid connection of floor materials. For example, the floating construction method is adopted in the floor structure, adding a layer of LJ rigid foam polyurethane composite cross-linked polythylene mat can avoid the Sound Bridge generated by the rigid connection of the material layer, thus obviously weakening the propagation of vibration and achieving good vibration attenuation effect.

Product advantages

It does not contain benzene, xylene and other organic volatile substances harmful to human body, and it is healthy and environmentally friendly.

It has the advantages of heat insulation, vibration attenuation and sound insulation, simple and convenient construction, etc.

Characteristics

LJ rigid foam polyurethane composite cross-linked polythylene mat is made ofcross-linked polythylene mat which is compounded by infrared hot melt and glass fiber felt, and then composite by infrared hot melt and rigid foam polyurethane, it is used on the floor of the building in the heat insulation project of residential building floor. In application, it has the characteristics of heat insulation, noise reduction and sound insulation, moisture resistance and antibacterial, health and environmental protection, simple and convenient construction, etc.

storage

Packing

Polyethylene packaging film packaging, adhere to the green, environmental protection principle, packaging film recyclable; can also be determined by the supply and demand parties through negotiation. The appearance of the packaging film or the certificate of qualification should be clearly marked: product name, manufacturer name, production address, product standard number, product specification and size, production date, etc.


欧美成人电影 在线播放 | 精品无码久久久性色 | 精品人妻无码一区二区三区91电影 | 国产精品 久久久精品岩 | 本道天堂成人在线 | 精品一级片内射免费观看 | 农村少妇一级毛片 | A片无码免费久久 | 中文字幕在线精品视频入口一区 | 国产69精品久久久久久久久久久久 | 亚洲AV无码乱码精品国产 - 百度 | 国产伦精品一区二区三区免费视频 | 国产一a毛一a毛A免费看图 | 欧美生交XXXX录像 | 国产午夜成人福利在线观看蜜芽 | 无码国产一区二区精品 | 亚洲精品无码成人A片在线沈先生 | 亚洲一区二区三区av在线观看 | 天堂VA蜜桃一区二区三区高清图片 | 日本理伦片午夜理伦片 | 成人妇女婬片AAAA视频 | 国产熟妇 码AV水也 | 国产精品二区一区二区AⅤ污介绍 | 91亚洲精品无码一区二区三区 | 欧美一交一配一交一交一视频 | 国产精品人妻不卡撞击 | 中文字幕精品在线 | 亚洲成人av在线 | 乱╳╳╳╳乱精品视频 | 五月丁香婷婷亚洲天堂网 | 欧美熟妇精品黑人巨大一二三区 | 成人在线直播观看 | 又硬又黄的视频在线观看 | 老熟女老熟妇2颜射口爆 | 亚洲av无码乱码国产 | 在线观看免费黄色视频 | 亚洲AV成人毛片无码一二三 | 国产十八 熟妇AV成人一区 | 男女精品国产乱婬高潮 | 91麻豆国产福利精品 | 国产成人无码A片 |