We can supply any and all types of construction supplies from Japan or the U.S. anywhere Japan-wide.  With our extensive local network of suppliers / manufacturers we can provide you the right materials for the job from any manufacturer in Japan.  We also have a satellite office in the U.S. and can procure for you items in the U.S. for shipment to Japan.  We also specialize in materials research, so send us your requirements in English / and or U.S. spec and we will find the correct local part to match!