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... of nutrients, improve feed conversion rate; 3)Improve the laying rate, fertilization rate, hatching rate and survival rate andhealthy chick rate ;improve the hardness and color ofeggshell 4)Enhance physiolo...
... pipeline 4. Chemical fertilizer equipment pipes Standard 1. ASTM, ASME, API, ANSI and DIN standards. 2. ASTM A106 / A179 / A192 / A210 / A213 / A519 etc. 3. DIN2391 / DIN17175 / EN10305 / En10083 etc 4. GB8...