Our raw material: in accordance with strict standards of internal assessment, selecting competitive domestic raw material suppliers. in accordance with the national testing standards, go to the supplier's plant make the long-term, the field sampling tests of the quality, and follow up to ensure a stable supply of raw materials

 

Our production process: according to ISO 9000 control standards, Standardize operation procedures, and strictly monitor and track each batch production processes of each set product.

 

Our finished product testing: According to ASTMD international testing standards, make rolling governance to the key indicators of products. CPK indicators of our each product will be stably fluctuating within a narrow range