TOP GUIDELINES OF POLIKARBONAT

Tapcon screws are a well known anchor that means self tapping (self threading) concrete screw. Larger diameter screws are called LDT's. This sort of fastener demands a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the opening using a regular hex or phillips bit.Untuk memastikan angkur baja yang terpasang benar-benar kuat, a