high borosilicate glass rod 1>the main composition SIO2:75-85% B2O2:11-15% Al2O3:2.2-2.6% Na2O(+K2O):4.1-4.5% 2>size:the DIA is 14-50mm,and the length is free
交货条款及包装
Packaging Detail: craft paper inside ,wooden box outsideand we also pack the goods as clients' requests Delivery Detail: fifteen days
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