WHAT DOES HARGA TIANG LISTRIK BETON 7 METER MEAN?

Tapcon screws are a favorite anchor that stands for self tapping (self threading) concrete screw. Larger sized diameter screws are known as LDT's. This kind of fastener needs a pre-drilled hole—using a Tapcon drillbit—and therefore are then screwed into the hole utilizing a regular hex or phillips little bit.Pelatihan: Pekerja harus mendapatkan