a. In food packaging industry, Loong pack insists the principle "Quality First" ;

b. The Quality Assurance department is controlling the whole procedure, from raw material, production, to storage, and even loading.

c. For leaking test, QC is doing sampling test of 10-30 percent ratio, and every 20-30 minutes continuously.

d. Moreover, every cup should pass 3 procedures, - appearance check(rim, print), leaking test, fitting inspection(if necessary).

Different size of paper cups show, we could accept OEM service, and  supply the SGS certificate of raw material