absorb powder parts:piston, base valve, pistion, rod guide Ningbo Kingbell Powder Metallurgy Co., Ltd. Our company,Ningbo Kingbell Powder Metallurgy Co., Ltd. ... 1988, located in Ningbo, China. We registered Ningbo Yongtai Powder Metallurgy Co., Ltd with Taiwan businessman.We specialize in ... and ISO14000 in 2003, and also are named Ningbo High Tech Enterprise in 2005. On Jun, 2th, 2008, we have ...