The SDS (Screw Driving Sounding) test is a soil classification test
that can distinguish between sand and other types of
soil (including cohesive soil, organic soil and volcanic cohesive soil)
with a high probability.
Safeguarding Japan's soil
Ensuring solid value and quality
in Japanese homes
It is JHS’s mission and wish to continue ensuring
a firm foundation for the homes of tomorrow.
JHS makes unstinting efforts toward this goal.
Working wich customers and expanding its services
JHS will continue to create sound living environments