(2) Maintenance of large vertical mill
        Maintenance of large vertical roller mill’s ATOX, MPS, LM, CK, RMR, MLS, MPF etc, on site replacement of vertical mill’s roller and bearing

    (3) Online and offline hard facing welding
        Vertical roller mill: On line hard facing welding of wear resistant lining board
        Roller press :on line and off line hard facing welding of roller 
        The optimum material for hardfacing
        Field welding work –It is not quite necessary to perform the replacement work of wear parts.
        KSW-Process is fully automatic and is capable of performing rebuild and resurface welding to wear parts in place by bringing welding equipment to any mills.
        Especially ,table segments can be rebuilt and resurfaced in place so that the working process is remarkably shortened and cost of maintenance is reduced.
        The deposit through KSW-Process consists extremely stable and remarkably hard M7C3 type carbides. The deposited carbides, the refore, exhibit remarkable wear resistance.

    (4) Masonry of refractory materials within the kiln
        Masonry of refractory materials within the kiln, grate cooler and pre-heater.
    (5).Maintenance of Globe mill, Elevator, filter bag, crusher, grate cooler.
        Ball bearings, Maintenance of dust collector, elevator and all kinds of cooler. Replacement of crusher liner，hammer and Transmission.

4. Maintenance of territorial Country
    Saudi Arabia, Ethiopia, Jordan, Iraq, Yemen, Oman
    Saudi repair centers: Many large cranes, more than 45 permanent employees from China's, several sets of automatic welding equipment,able to complete the vertical roller mill linings and disc online and offline surfacing,able to roller press rollers online and offline reactors weld.
    Ethiopia Repairs: New motor repair factory, several sets of automatic welding equipment, mobile tool room, 30 permanent employees from China.
    Iraq Repairs: multiple sets of automatic welding equipment,
    Iran, Bangladesh service center: to repair technology export as the main way, a number of technical staff Permanent, maintenance technicians on-site guidance and supervision of the construction program and other services.
    In addition to the existing maintenance center permanent staff, ready to send personnel from China totaled more than 100 people.
    A number of European equipment / product partner (IKN, Loesche, Thunder), providing high-tech service.
  
5. Maintenance a list of performance :( outside part of the maintenance order)
 

NO	Time	Construction unit	Name of Maintenance Job
1	2009.Feb—Mar	Riyadh Cement Company	REFRACTORY WORK
2	2009.Feb	Riyadh Cement Company	Replacment of Cawl shell Kiln No.1 and Duct damper
3	2009.May	Northern Region Cement  Co.	Raw mill maintenance Job
4	2009.June	Northern Region Cement  Co.	REFRACTORY WORK
5	2009.Dec	Riyadh Cement Company	Maintenance Job
6	2010.Apr	Northern Region Cement  Co.	REFRACTORY WORK
7	2010.Jul	Riyadh Cement Company	Maintenance Job for Kiln 1
8	2011.May	Al Jouf Cement Company	Maintenance Job for Raw Mill
9	2011.May	Al Jouf Cement Company	Maintenance Job for Kiln
10	2011.May	Al Jouf Cement Company	Maintenance job of HV Cable
11	2011.Aug	Saudi Cement Company	Maintenance job for  SCC HOFUF Plant
12	2011.Sep	Northern Region Cement  Co.	Maintenance job for Cement Mill
13	2011.Nov	Northern Region Cement  Co.	CEMENT MILL 2  MAINTENANCE
14	2011.DEC	Northern Region Cement  Co.	REFRACTORY WORK
15	2012.Jan	Northern Region Cement  Co.	CEMENT MILL REDUCER MAINTENANCE
16	2012.Feb	Northern Region Cement  Co.	IKN ROLLER CRUSHER REPLACEMENT
17	2012.Feb	Northern Region Cement  Co.	Raw mill maintenance Job
18	2012.Feb	Northern Region Cement  Co.	Replacement of belts & buckets.
19	2012.Mar	Northern Region Cement  Co.	Major Maintenance jobs
20	2012.Mar	Northern Region Cement  Co.	replacement of kiln support roller
21	2012 Dec	Riyadh Cement Company	REFRACTORY WORK
22	2013.Mar	Northern Region Cement  Co.	MILL MAINTENNACE  Replacement of grinding Roller & Table segments & overhauling, bearings, seals & sealing rings replacement.
23	2013.Oct	Derba Midroc Cement	Tertiary Air Duct Firebrick Restoration
24	2013.Oct	Derba Midroc Cement	Debriking and rebricking of Kiln Lining48.8m                                                           Castable casting work 45.32T                    Scaffolfing work 300M3
25	2014.Mar	Northern Region Cement  Co.	REPAIRING OF RAW MILL & EP DUCTS DISMANTLE & ASSEMBLY
26	2014.Jul	City Cement Co.	Work order for Dismantling ,Removal,and Installation of out let tube in City Cement Ball Mill,CM-A of Diameter 5.0 Meters.
27	2014.Nov	Derba Midroc Cement	High polymer engineering material installation
28	2014.Mar	NAJRAN CEMENT COMPANY	Harfacing & Rebuilding To Normal Diameters For 04 Nos. Rolls in Two Roller Press as Per Standard Procedure
28	2014.Nov	Derba Midroc Cement	Debriking and rebricking of Kiln Lining48.8m                                                           Castable casting work 45.32T  Scaffolfing work 300M3
30	2014.Mar	Riyadh Cement Company	Modification of evacuating ALKALI dust bin
31	2015.May	Northern Region Cement  Co.	CEMENT PROCESS CONTROL COMPUTER R720 (沙特NRCC软件升级)
32	2015.Feb	Yamama Cement Factory	KILN 7 FEBRUARY 2015 SHUTDOWN SUBCONTRACTED SERVICE ( MOBILE CRUSHER # 3)
33	2015.Apr	Northern Region Cement  Co.	REPLACEMENT OF KILN COLD SHELL
34	2015.Apr	Yamama Cement Factory	MAINTENANCE, REPLACEMENT OF PARTS AND CLEANING OF KILN #3 EP DUST SYSTEM, AS PER ATTACHED SCOPE OF WORK Enquiry for Mill Head replacement job in CM 2.
35	2015.Apr	Northern Region Cement  Co.	Repairing work of raw mill in NRCC
36	2015.Feb	Yamama Cement Factory	Replacement of Airslide Canvass from Silo 1 & 2 up to Feeding Bucket Elevator
37	2015.Apr	Yamama Cement Factory	KILN 6 APRIL 2015 SHUTDOWN SUBCONTRACTED SERVICES ( Clinker Cooler Area)
38	2015.Jul	Riyadh Cement Company	Mill Head replacement job in CM 2
39	2015.Jul	Northern Region Cement  Co.	Scraping/replacement of shoe bearings at outlet only of cement mill #02