Oral tissue patch is a kind of variant acellular dermal matrix, with collagen as its main component.

口腔组织补片是一种异体脱细胞真皮基质，其主要成分为胶原蛋白。

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For the steel wire have good flexility which is standard component cheaper than metal ring, so we use the steel cable take the place of the metal ring named patch metalV-belt;

由于钢丝绳的柔性好，且为标准件，价格比环形带便宜，采用钢丝绳代替环形轧制环型钢带；

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For the steel wire have good flexility which is standard component cheaper than metal ring, so we use the steel cable take the place of the metal ring named patch metalV-belt;

由于钢丝绳的柔性好，且为标准件，价格比环形带便宜，采用钢丝绳代替环形轧制环型钢带；

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