Shunzhi TongBao composition of red copper seventy percent, and thirty percent of white brass.
顺治通宝的成分红铜七成，白铜三成。
It is shown that in certain extent, the composition gradient of the brass coating has great effect on the adhesion between steel cord and rubber.
结果表明，在一定范围内，镀层成份梯度(化)钢帘线与橡胶粘结力有显著影响。
It is shown that in certain extent, the composition gradient of the brass coating has great effect on the adhesion between steel cord and rubber.
结果表明，在一定范围内，镀层成份梯度(化)钢帘线与橡胶粘结力有显著影响。
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