Polycarbonate Plastic and China Acrylic, Professional Plastic, Wood Plastic products are commonly for chemical use. 
A few examples, detergents are products that contain an active substance called surfactants or surface active material. Another industry for chemical usage is Clothing.
DERFLEX is one of the leading polycarbonate plastic sheet China manufacturer over 20 years. If you have more interest, please contact me at:
Email: steven@derflex.com
M.P.: +86 15601786499 (WhatsApp & WeChat)
RESPONSE in half an hour during working hours