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Rubber bladder
Spoiler
rubber dam is made of 90% EPDM. EPDM is a kind of special rubber with
notable features in extreme temperatures, also can be resistant to
weathering, ozone, UV. Spoiler rubber dam uses high strength polyester
fabric which makes the dam bag have high tensile strength, obvious
revivification advantage, not deform in long
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Hebei Hengyang Engineering Equipment Co.