... 衬垫螺旋 packing screw; 衬垫密封接头 gasket sealed; 衬垫绳压 rope pressure on lagging; ...
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绝热盒,包括绝热衬垫,橡胶密封,4个螺纹接头。
Heat-proof case with heat-proof insert, rubber seal, 4 clamp screw connections.
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