petercool 发表于 2014-7-11 14:08 ( f' e; N' T5 T这个不好,三层都是form,没有内置独立弹簧,也就是pocket coils,更不是bi-level的pocket coil了,时间长了 ...
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All seahorse mattress are foam. there is no any pocket coils. they can stay firm for many years. j; J2 M( u3 f9 f7 h
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Is there any difference between seahorse foam and sealy foam?
cathybb 发表于 2014-7-11 14:48 ) b {2 B5 Q% a5 ~2 k7 pAll seahorse mattress are foam. there is no any pocket coils. they can stay firm for many years. ...
5 I& C/ F+ g' z2 H% O5 @你说的对,弹簧做的床垫时间长了都会有凹陷的现象,这是和金属的疲劳强度是分不开的。大牌的床垫厂商像是SIMMONS 会用一些措施来提高弹簧的疲劳强度,比如采用比杂牌床垫强度更高的钢材料,把三股钢丝并成一股的专利技术来增粗弹簧,采用多次高频淬火从而提高表层强度来延缓弹簧的凹陷现象。 " H3 G3 _' V" v; \/ Z 0 c. h/ c. [" H5 K/ L海马和我们东阳独家代理的KINGKOIL 特硬床垫都是用的8“高压海绵,就是Costco 图里的 HIGH DENSITY FOAM CORE, 加一层 MEMORY FORM的目的是让床垫变软更贴身,迎合白人的睡眠习惯。如果你要找偏硬的床垫的话,Sealy 的这张是不适合你的。我们KINGKOIL的特硬床垫全部北美生产,10年内有塌陷包换,价钱是海马的一半,比这张Sealy的还要便宜,有空可以来看看。