因此，房子密闭性好，耗能低，太阳能建筑才能达到预期的效果。
Therefore, the house confined good, low-energy, solar architecture can achieve the desired effects.
采用优质钢材焊接而成，运行灵活、密闭性好、性能可靠，具有自动锁风落料的功效。
This valve is welded in fine steel, having the features of handy to operate, good seal, reliable performance and having the function of automatic air-locking dropping material.
高品质不锈钢的管道阀门，无缝焊接的连接口，以保证绝对的气体密闭性和管道系统的耐用性。
High quality stainless pipe valve and seamless welded joint can ensure absolutely air conurbation and durability of pipe system.
应用推荐