Challenge Power TransmissionThe Challenge Group is a leading manufacturer and distributor of power transmission components the complete range ....Address:5 / F Mannine Industrial Building, How Ming StreetWhaling Development CompanyEstablished in 1994, expertize transmission system field, we have long term and excellent relationship with ....Address:807 Ching Wu Hse, Yuk Po Court, Sheung ShuiNodha Industrial(machinery) Co,.LimitedNodha Industrial Co, . Limited is founded in August, 1978. We are professional company that majoring machinery ....Address:27floor, Risheng Center, Shing Yip Shreet, Kwun Tong, Hong Kong 1