A gelatin-like substance obtained from kelp and used in impression material.
A gelatin-like substance obtained from kelp and used in impression material.
一种从海藻中获得的类似凝胶的物质并且用于印模原料.
A gelatin-like substance obtained from kelp and used in impression material.
一种从海藻中获得的类似凝胶的物质并且用于印模原料.