we are one of leading construction machinery manufacturer in China, tower crane, construction hoist are our main products. Tower crane QTZ31.5(4207), QTZ40(4708 and 4807), QTZ50(4810 and 5008), QTZ63(5013 and 5510, QTZ80(5613 and 6010), QTZ125(6015 and 5518), QTZ160(6516), QTZ260(7030) etc all are in our range. we also have tower cranes with mast sections made up of steel sheets bolted together, and flat top type same as POTAIN technic. our construction elevators have model SC100, SC100/100, SC200, SC200/200. single cage or double cages. load capacity is 1 ton/cage or 2 tons/cage. all of them are made of good quality steel from BAO STEEL PLANT which is the NO.1 steel plant in China. it can guarrantee the materials in good quality. almost all the main parts are from famouse brands, and almost all the weldings are made by welding ROBOTS instead of manpower. we also adopt sands quick cooling welding machine, it can guarrantee all the weldings are perfect and exact. As a professional construction machinery manufacturer, all our products have very good cost performances. if you have any inquiry, pls feel free to let us know. welcome you to visit our company. tks & best regards. Rovan Wu(export manager) Shandong Dahan Construction Machinery CO., LTD TEL.: 0086 532 87867159 FAX.: 0086 532 87757529 mobile: 0086 13954246486