The Definitive Guide to harga besi hollow
As shown in the figure, tightening the bolt brings about a wedge currently being driven up from a sleeve, which expands it and brings about it to compress in opposition to the fabric it is becoming mounted to.Sebelum dimasukkan, pastikan angkur telah dibersihkan dari kotoran dan debu yang menempel pada permukaannya. kalian bisa menggunakan kuas ata