Sealyn.西利
sealn.封条;印章n.海豹v.密封;盖印;明确
sealing leg汽压升降器
sealing ply密封层
seal packing密封填料
seal bargain确认交易
sealed track密封跑道
seal fisheryn.捕海豹业
seal the top封顶
seal welding密封焊接
sealing life密封寿命
seal pouring密封注胶