... materials and feed additives of magnesium salt, etc..How to Control the Quality,Service and Price:1.Quality: A. ... select good quality to export. C. We have profession inspection terms who check the broken bag,caking ... and loading port. D. We can accept the third party inspection,as :SGS,Intertek,BV and ... in Port.3.Price: We often stock the cargo before the price rise in our warehouse.Payment:1. ...