Chenggang (Shandong) Steel Co., Ltd is a professional and reputable steel manufacturer and exported in North China of Welded Steel Pipes , Seamless Steel Pipes , Galvanized Steel Tubes , Color Steel Coils and other related products . Our products are mainly exported to South America , Southeast Asia , Africa , Russia , Ukraine and so on . We have at least 12 years producing and R&D experience on steel products and most customized products of all material are accepted . Our company always sticks to the following business principles : High Quality Products to win the market ; Competitive Price to attract customers ; Excellent Service to gain reputation ; Well-Known Brand to promote value . We are always waiting to cooperate with you .