| 摘要 |
Casing for a door or a window, which may or may not be provided with a moveable part, in which the casing comprises a ground sill, which is made of poly olefin. The ground sill has a molecular weight of between 150,000 and 4,000,000, preferably 0.5.10<6>. The material of the casing is a polyethene and is formed from the group LDPE, LLDPE, HMWPE and UHMWPE.
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