... including LOAD-BEARING TESTING(conform to EN124), SALT SPRAY TEST,CHEMICAL ANALYSIS TEST,PHYSICAL PERFORMANCE TEST and so on .Further more,we have a ... good porcelain enamel resistance.For example:Thermal shock test, Fire testing,Impact test and salt spraying Cast iron grate, cast iron ... brown, graphite gray etc.We equiped all kinds of product test including:Fire testing(1 hour *3 times)Thermal shock ...