THE 5-SECOND TRICK FOR PAGAR BRC SURABAYA

Tapcon screws are a favorite anchor that means self tapping (self threading) concrete screw. Much larger diameter screws are generally known as LDT's. Such a fastener demands a pre-drilled gap—employing a Tapcon drillbit—and are then screwed into the outlet applying an ordinary hex or phillips bit.Pelatihan: Pekerja harus mendapatkan pelatihan