How to choose the installation of air conditioning electric hammer
I have been using the expansion screw GB 10, hang 4, 3-5 Guiji hit 5-6. We have worked out the installation department to save money to buy 8 non-standard screws for iron, the results because the wall is not too good, even with the machine turned down together, then no one would dare this money.
18 type electric hammer hole can not..... To open a hole to 24 type 26 type electric hammer.... Drills for 6 and 12..... Expansion tube... Screw。。。 12 inch spanner.. Inner six angle wrench set.... Cross shaped screwdriver
