Name: Simple plug to volleyball column 400 yuan / pay Model: PQ-004 Material: 48mm diameter steel tube top quality 2.3mm thickness with bottom pulley has received tightly thread with embedded parts. Height: 1.85 m [embedded] containing embedded methods: 1: 20 * 20 * 30cm dig a pit into the embedded parts filled with concrete after 4-5 days to fully tighten using a 2: Ground for concrete floor and a thickness of not less than by the horizontal bar at the bottom of the expansion screws welded steel punch holes in the ground marked expansion can be used to tighten the screws on the spot using [10 cm] maintenance methods: 1: In the case of long-term use of screws will it marked a little butter or oil prevent corrosion 2: Keep executives and accessories clean Cangzhou Oda Sports Equipment Manufacturing Co., Ltd. (www.czadty.com) research, design, production, sales and service in one of the professional enterprise. Specializing in the production of electric, manual hydraulic basketball, imitation hydraulic basketball, fixed, mobile, hanging basketball and various grades of basketball board, table tennis, tennis column, column volleyball, badminton column, soccer doors, all kinds of gymnastics , track and field equipment and other sports equipment. Sports Equipment Manufacturing Co., Ltd. Cangzhou Oda attention to the quality assurance system, successfully imported ISO9001; 2000 quality management system, "high-quality products and services to meet customer demand, the spirit of innovation and continuous improvement in order to contribute to the cause of Chinese sports" as quality, regulate the internal management processes, strengthen quality control management, improve customer satisfaction.