Hydroxypropyl methylcellulose HPMC for new phosphogypsum building materials refers to the reuse of phosphogypsum, which was previously regarded as "waste residue", after washing to remove phosphorus impurities, calcination and modification, etc. building materials.
When choosing PCB label material, durability is paramount. It must withstand temperature fluctuations and resist moisture and chemicals. Polyester, polyimide, and vinyl are among the top choices due to their resilience.