1. Main Technical Parameters: (1). Use for product: W-SDS Rotary Slips. Pipe size (in): 2 3/8"~4 1/2". (2). Use for product: W-SDML Rotary Slips. Pipe size (in): 2 3/8"~5 1/2". (3). Use for product: W-SDXL Rotary Slips. Pipe size (in): 3 1/2"~5 1/2". (4). Use for product: 3 1/2~5 Rotary Slips. Pipe size (in): 3 1/2"~5". (5). Use for product: 5~7 Rotary Slips. Pipe size (in): 5"~7". (6). Use for product: W3 1/2"-75 (125) Rotary Slips. Pipe size (in): 2 3/8", 2 7/8", 3 1/2". (7). Use for product: 5-75 (125 200) Rotary Slips. Pipe size (in): 4", 4 1/2", 5". (8). Use for product: DCS-S Drill Collar Slips. Pipe size (in): 3"~4 7/8". (9). Use for product: DCS-R Drill Collar Slips. Pipe size (in): 4 1/2"~7". (10). Use for product: DCS-L Drill Collar Slips. Pipe size (in): 6 3/4"~14". (11). Use for product: WT Drill Collar Slips. Pipe size (in): 4 1/2"~11 3/4". (12). Use for product: 8" Drill Collar Slips. Pipe size (in): 8". (13). Use for product: 9" Drill Collar Slips. Pipe size (in): 9". (14). Use for product: Casing Slips. Pipe size (in): 6 5/8"~30". (15). Use for product: WA-C Safety Clamps. Pipe size (in): 3 1/2"~15 5/8". (16). Use for product: WA-T Safety Clamps. Pipe size (in): 1 1/8"~4 1/2". (17). Use for product: QQ P60-89/585 Pneumatic Spider. Pipe size (in): 2 3/8"~3 1/2". (18). Use for product: QQ P60-89/675 Pneumatic Spider. Pipe size (in): 2 3/8"~3 1/2". (19). Use for product: QQ P60-127/900 Pneumatic Spider. Pipe size (in): 2 3/8"~5". (20). Use for product: Well Repair Manual Tongs. Pipe size (in): 2 3/8"~10 3/4". (21). Use for product: B Manual Tongs. Pipe size (in): 2 3/8"~12 3/4". (22). Use for product: DB Manual Tongs. Pipe size (in): 3 1/2"~17". (23). Use for product: 13 3/8 Casing Manual Tongs. Pipe size (in): 13 3/8". (24). Use for product: Q13 3/8-30 Casing Manual Tongs. Pipe size (in): 13 3/8"~30". (25). Use for product: Tubing and Workover Tongs. Pipe size (in): All size available. (26). Use for product: Drill Power Tongs. Pipe size (in): All size available. 2. Features: (1). The dies made from high-quality alloy steel in our company. (2). The dies are chemically heat-treated for surface hardness. (3). The dies and slip inserts are wear-raciting, corrosion-resistance. (4). Customized products are available. (5). Qualified API certified manufacture.