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Tianjin Construction Machinery Works is the earliest enterprisespecialized in manufacturing crawler type bulldozer thatproduced China’s first crawler type bulldozer in 1958. Over40years, it has designed and manufactured Yishan crawlertype bulldozers such
Tianjin Construction Machinery Works is the earliest enterprisespecialized in manufacturing crawler type bulldozer thatproduced China’s first crawler type bulldozer in 1958. Over40years, it has designed and manufactured Yishan crawlertype bulldozers such