For long-lasting PU Injection Grouting services, trust Shakura Construction & Engineering. We use high-grade PU materials to stop active leaks and reinforce concrete structures. Office: Blk 942 #04-453 Jurong West St.91 Singapore 640942. Contact +65 9647 2701 or [email protected] https://shakuraconstruction.sg/services/pu-injection-grouting/