member
WKT-1200JN ƙasa particle yawa, porosity, ruwa sha gwaji
WKT-1200JN ƙasa particle yawa, porosity, ruwa sha gwaji, bisa ga ASTM D4254, D854, D852, SL237, JIS, GB / T, ISO ka'idodin. Za a iya amfani da sealing
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QNetworkAccessFileBackend
