a级国产大片在线免费观看專業從事互動視頻_欧美日韩国产主播在线_欧美亚洲日韩理论片在线_中文字幕第二页_国产精品麻豆影院_在線觀看免費三級無碼_亚洲日韩av成人影视一区_(凹凸視頻)久久精品免费_军人野外吮她的花蒂无码视频_中国gay男男av毛片免费看

Detailed technical indicators and parameters:

Meets the standard requirements of GA 869-2010 Fire Fighter Fire Protection Headgear.

1, fabric performance

Anti-pilling performance: 3-4

Formaldehyde content: none

2, the overall performance

Seam strength: 992.1N;

Pitch density: prepare 3cm14 needles for light and dark lines; mass 141.4g;

Flame retardant performance of fabric: continuous burning time 0s, damage length 7mm; flame retardant performance latitude: continuous burning time 0s, damage length 8mm, thermal stability energy dimensional change rate 2.0%. The dimensional change rate of washing is straight to 1.9% and 0.7% in the lateral direction.

It protects the head, face and neck during fire fighting and rescue. It is flame retardant, warm, lightweight and comfortable.

It is used for inner and inner layer protection of fire-fighting operations in flammable and explosive places such as flammable gas, dust and steam. Meets the standard requirements of GA869-2010 Fire Fighter Fire Protection Headgear. It adopts the essential flame retardant materials such as aramid. The raw materials are dyed with the original pulp, without washing and decoloring. The headgear has elasticity, fits the face and is comfortable to wear. The flame retardant performance of the fabric is 0s after burning, the length of damage is ≤100mm (38); the flame retardant performance of latitudinal flame retardant is 0s, the length of damage is ≤100mm (40mm), and the dimensional change rate of thermal stability is ≤10% (1.6%) . The dimensional change rate of water washing is ≤5% (1%) and ≤5% (2%). Anti-pilling performance is not lower than grade 3 (grade 3-4). The formaldehyde content was not detected. Weight ≤ 300g (115.6g), PH value 6.1, seam strength 915N.