hydrolysis resistant black pghslr - bk nylon % gf with(premium grade) pghslr - a bk nylon % gf with hydrolysis resistant natural pghslr - nc nylon % gf with hydrolysis resistant natural pghslr - nc industrial product series (gf) description name nylon gf black pg - bk nylon gf black pg - bk nylon gf...
of which l-dopamine can be composed (dopamine is a medical treatment for parkinsonism). what's more, it is the starting medicament of polyvinyl and often used to make material for protecting grain. specifications: ) appearance: slight yellow liquid ; ) pyruvic acid: >= % ; ) heavy metals: = %. s.p.:...