产品特点：
Product Features·抗紫外线辐射,耐化学腐蚀             ·UV-resistant，chemical-resistant
·整支高温高压消毒                    ·Autoclave sterilization
·任意容量锁定                        ·The adjusted volume can be locked
·动态密封                            ·Dynamic seal
·自润滑设计，可无油密封              ·Self-lubricating,Dry Seal