Product of N Natural Liquid Alkalinity S-2448 Model number:S-2448 Contents: 20kg Use: Commercial detergent Natural Liquid Alkalinity S-2447 Model number:S-2447 Contents: 4kg Use: Commercial detergent Neutral Rust Remover S-9816 Model number:S-9816 Contents: 18kg Use: Rust remover Neutral Rust Remover S-9815 Model number:S-9815 Contents: 4kg Use: Rust remover