印度采购需求：甲基羟乙基纤维素、MHEC生产商、羟乙基甲基纤维素、砂浆和水性涂料

We're looking to source high-quality powders for our tile adhesive production, specifically MHEC and VAERDP types. It's important that the materials meet our performance standards for viscosity and consistency. Could you please provide detailed specifications, including potential applications and pricing? We're interested in establishing a reliable supply chain and would appreciate any info on availability and lead times. Thanks!