1。价格适中（20%）2.性能稳定（20%）3.耐热保温，耐腐蚀（20%）4.内壁光滑不结垢（20%）5.管道系统安全可靠，并不渗透（20%）
5. Good at spoken english and phone call communication. 6.One stop solution and drop shipment for online sellers. Product Description Custom Molded Rubber Parts Material NBR, CR, SBR, EPDM, IIR, HNBR, ACM, NR, EP, SIL, FKM etc. Hardness Between 30~90 shore ...