21

【Waterproofing Material for Penetrations】Non-drying Polyolefin-based Single-component Waterproofing Putty Tometarou
EPJ
NETIS: Can be installed even in flowing water conditions (after leakage, during water flow)! Non-hardening water stop putty, suitable for hand holes/cable and pipe penetration areas for various types of leaks.
34
Insulated copper pipes for hot water supply and insulated copper pipes for hot water heating - Ipo Tube
イノアック住環境
High-performance piping materials born from energy-saving thinking.
34

HDD method (induction horizontal drilling method) TerraJet method - compatible with overhead wire elimination.
東洋工務店
Piping and wiring burial system (non-excavation method, thrust method)! Attention on "overhead line removal"! "Challenging the creation of lifelines that run through the Earth and underground."