CIS provides PPI, DPI, PSI, LOADING and FULL inspection etc. Hardline such as valve qc insepction of water, gas, and brass, ... etc. Continent Inspection Service Co.Ltd( CIS) is located at ... is as follow:1. Pre-Production Inspection(PPI)2. During-Productio Inspection(DPI)3. Pre-shipment Inspection(PSI)4. Supervision of Loading5. 100 ...