Raw material is the first and most important element to ensure the performance of final products. 

. All our materials are ordered from reputable suppliers; suppliers' production methods hold quality accreditation under International Standards Organization (ISO) or similar standards.

. We do 100% inspection of all materials before production. Provision of sample materials, testing of these against the design specifications, and formal approval of samples before full production is commenced.

. Always consider proper storage conditions (addressing issues such as security, the effects of heat, dust, dampness, or humidity) and locations. Take particular care with special material. 

. Regular inspections of the condition of materials and inventory of all materials should be scheduled as part of a formal materials quality control plan.