- flange gasket
- 法兰: flange
- 垫: put sth. under sth. else to ...
- 法兰垫片: flange gasket; flanged packing
- 法兰垫圈: flange gasket
- 管法兰垫片: test method for compressibility and recorery of gaskets for pipe flanges; test method for stress relaxation of gaskets for pipe flanges
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