... Product Specification: JT/ T446-2001 No.1, 2, 3; KSL 2521 No.1 and 2; BS6088 Class A ... ,B,C,D. According to the client's request.3) Technical information, Appearance: Clean, transparent, no obvious ... Hardness (Moh's): 5-74) Packing: 1.Using double-deck package, the inner is polythene film and its thickness ... net weight of each is 25±0.2kg. 3.Using double-deck package, the inner is polythene fim and ...