Sodium Bentonite for Metro Shield Tunneling /Diaphragm Wall and Pile Foundation Const

Sodium Bentonite for Metro Shield Tunneling /Diaphragm Wall and Pile Foundation Const. 1 Versatile Applications: Suitable for subway tunneling, iron casting, sewage treatment, and drilling wells. 2 ISO 9001 Certified Quality: Manufacturing process adheres to ISO 9001:2008 standards with rigorous pre-production and final inspections. 3 Fast Lead Time: Peak and off-peak season lead times are both within 15 working days. 4 Customizable Packaging: Standard 25kg or 50kg woven bags with options for customized packaging sizes. 5 Direct Manufacturer: Factory direct supply from Hunan China, ensuring competitive pricing and professional support.